Technical secure transport (replace)for GTA V by "elcreador" 
This mod replace trailersmall.

It is recommended that you use OpenIV's mod manager feature (http://openiv.com/?p=1132) with rpf mods to provide easy switching of rpf mods to off for online play to avoid bans. 

This is model 3d conversion of a wheeled cannon  and can be attached and attach.I have added a hook for attach trailers and caravans of my mods.For attach you must be into the caravan and near of the other caravan.

Files: 
-trailersmall.yft
-trailersmall.ytd
-trailersmall_hi.yft

IMPORTANT:
In this mod, i have added acces to the trailer like in a normal car, you can acces and then use a simple trainer to open and close the back doors and mount a car.

Dissapears:
I use a simple trainer with an script to prevent that the cars disappear.
http://gtafiles.gtainside.com/downloads/ftph/1434638948_disappearing.zip 


This trailer can be attached with some games cars like BISON and to others cannons and caravans of my mods.

Ill go adding more cars and trailes that will be able be attached between them, even those.



Enjoy.

With OPENIV in edit mode you can replace the files: 
-------------------------------------------------------------------------------------------------- REPLACE METOD:

- infernus install

1-Replace trailersmall files; you can find them in: 
GTA V\update\x64\dlcpacks\patchday3ng\dlc.rpf\x64\levels\gta5\vehicles.rpf\


----------------------------------------------------------------------------------------------

2-Replace lines in handling.meta in: 
GTA V\update\update.rpf\common\data

You can  replace only the vehicles lines editing the files:

Extract it with OpenIV and edit it with Notepad++. Open the file, press CTRL+F and search for "infernus" until you find the part where trailersmall is listed.

Overwrite original entry with the following:


<handlingName>TRAILERSMALL</handlingName>
      <fMass value="1200.000000" />
      <fInitialDragCoeff value="8.000000" />
      <fPercentSubmerged value="85.000000" />
      <vecCentreOfMassOffset x="0.000000" y="0.000000" z="-0.10000" />
      <vecInertiaMultiplier x="1.100000" y="1.100000" z="1.400000" />
      <fDriveBiasFront value="0.300000" />
      <nInitialDriveGears value="1" />
      <fInitialDriveForce value="0.200000" />
      <fDriveInertia value="1.000000" />
      <fClutchChangeRateScaleUpShift value="1.600000" />
      <fClutchChangeRateScaleDownShift value="1.600000" />
      <fInitialDriveMaxFlatVel value="0.000000" />
      <fBrakeForce value="0.700000" />
      <fBrakeBiasFront value="0.650000" />
      <fHandBrakeForce value="0.450000" />
      <fSteeringLock value="40.000000" />
      <fTractionCurveMax value="2.130000" />
      <fTractionCurveMin value="1.950000" />
      <fTractionCurveLateral value="22.500000" />
      <fTractionSpringDeltaMax value="0.130000" />
      <fLowSpeedTractionLossMult value="1.600000" />
      <fCamberStiffnesss value="0.000000" />
      <fTractionBiasFront value="0.50000" />
      <fTractionLossMult value="0.000000" />
      <fSuspensionForce value="2.500000" />
      <fSuspensionCompDamp value="1.100000" />
      <fSuspensionReboundDamp value="3.30000" />
      <fSuspensionUpperLimit value="0.170000" />
      <fSuspensionLowerLimit value="-0.200000" />
      <fSuspensionRaise value="0.000000" />
      <fSuspensionBiasFront value="0.440000" />
      <fAntiRollBarForce value="0.325000" />
      <fAntiRollBarBiasFront value="0.650000" />
      <fRollCentreHeightFront value="0.260000" />
      <fRollCentreHeightRear value="0.260000" />
      <fCollisionDamageMult value="1.000000" />
      <fWeaponDamageMult value="1.000000" />
      <fDeformationDamageMult value="0.300000" />
      <fEngineDamageMult value="1.500000" />
      <fPetrolTankVolume value="80.000000" />
      <fOilVolume value="8.000000" />
      <fSeatOffsetDistX value="0.000000" />
      <fSeatOffsetDistY value="-0.100000" />
      <fSeatOffsetDistZ value="0.000000" />
      <nMonetaryValue value="50000" />
      <strModelFlags>440010</strModelFlags>
      <strHandlingFlags>0</strHandlingFlags>
      <strDamageFlags>0</strDamageFlags>
      <AIHandling>TRUCK</AIHandling>
	  <SubHandlingData>
		<Item type="CVehicleWeaponHandlingData">
          <uWeaponHash>
            <Item>VEHICLE_WEAPON_TANK</Item>
            <Item />
            <Item />
          </uWeaponHash>
          <WeaponSeats content="int_array">
            2 
            0 
            0 
          </WeaponSeats>
          <fTurretSpeed content="float_array">
            10.000000	
            0.000000	
          </fTurretSpeed>
          <fTurretPitchMin content="float_array">
            -0.90000
            0.000000	
          </fTurretPitchMin>
          <fTurretPitchMax content="float_array">
            0.707000	
            0.000000	
          </fTurretPitchMax>
          <fTurretCamPitchMin content="float_array">
            -1.707000	
            0.000000	
          </fTurretCamPitchMin>
          <fTurretCamPitchMax content="float_array">
            0.000000	
            0.000000	
          </fTurretCamPitchMax>
          <fBulletVelocityForGravity content="float_array">
            0.000000	
            0.000000	
          </fBulletVelocityForGravity>
          <fTurretPitchForwardMin content="float_array">
            -0.080000
            0.000000	
          </fTurretPitchForwardMin>
          <fUvAnimationMult value="0.000000" />
          <fMiscGadgetVar value="0.000000" />
          <fWheelImpactOffset value="0.000000" />
        </Item>
        <Item type="NULL" />
        <Item type="NULL" />
      </SubHandlingData>
    </Item>
--------------------------------------------------------------------------

3-Replace vehicles.meta in: 
GTA V\update\update.rpf\common\data
You can  replace only the vehicles lines editing the files:

Extract it with OpenIV and edit it with Notepad++. Open the file, press CTRL+F and search for "infernus" until you find the part where trailersmall is listed four times.

Overwrite original entry with the following:


<modelName>trailersmall</modelName>
      <txdName>trailersmall</txdName>
      <handlingId>TRAILERSMALL</handlingId>
      <gameName>TRAILER</gameName>
      <vehicleMakeName />
      <expressionDictName>null</expressionDictName>
      <expressionName>null</expressionName>
      <animConvRoofDictName>null</animConvRoofDictName>
      <animConvRoofName>null</animConvRoofName>
      <animConvRoofWindowsAffected />
      <ptfxAssetName>null</ptfxAssetName>
      <audioNameHash>sultanrs</audioNameHash>
      <layout>LAYOUT_STD_TECHNICAL</layout>
      <coverBoundOffsets>REBEL_COVER_OFFSET_INFO</coverBoundOffsets>
      <explosionInfo>EXPLOSION_INFO_DEFAULT</explosionInfo>
      <scenarioLayout />
      <cameraName>FOLLOW_JEEP_CAMERA</cameraName>
      <aimCameraName>JEEP_AIM_CAMERA</aimCameraName>
      <bonnetCameraName>VEHICLE_BONNET_CAMERA_NEAR_LOW</bonnetCameraName>
      <povCameraName>DEFAULT_POV_CAMERA</povCameraName>
      <povTurretCameraName>POV_TURRET_CAMERA_TECHNICAL</povTurretCameraName>
      <FirstPersonDriveByIKOffset x="0.000000" y="-0.040000" z="-0.020000" />
      <FirstPersonDriveByUnarmedIKOffset x="0.000000" y="0.000000" z="0.000000" />
      <FirstPersonProjectileDriveByIKOffset x="0.000000" y="0.000000" z="0.043000" />
      <FirstPersonProjectileDriveByPassengerIKOffset x="0.000000" y="0.053000" z="-0.048000" />
      <FirstPersonProjectileDriveByRearLeftIKOffset x="0.000000" y="0.000000" z="0.000000" />
      <FirstPersonProjectileDriveByRearRightIKOffset x="0.000000" y="0.000000" z="0.000000" />
      <FirstPersonDriveByLeftPassengerIKOffset x="0.000000" y="0.000000" z="0.000000" />
      <FirstPersonDriveByRightPassengerIKOffset x="0.000000" y="-0.040000" z="-0.020000" />
      <FirstPersonDriveByRightRearPassengerIKOffset x="0.000000" y="0.000000" z="0.000000" />
      <FirstPersonDriveByLeftPassengerUnarmedIKOffset x="0.000000" y="0.000000" z="0.000000" />
      <FirstPersonDriveByRightPassengerUnarmedIKOffset x="0.000000" y="0.000000" z="0.000000" />
      <FirstPersonMobilePhoneOffset x="0.140000" y="0.175000" z="0.528000" />
      <FirstPersonPassengerMobilePhoneOffset x="0.190000" y="0.179000" z="0.403000" />
      <PovCameraOffset x="0.000000" y="-0.200000" z="0.650000" />
      <PovCameraVerticalAdjustmentForRollCage value="0.000000" />
      <PovPassengerCameraOffset x="0.000000" y="0.000000" z="0.000000" />
      <vfxInfoName>VFXVEHICLEINFO_CAR_GENERIC</vfxInfoName>
      <shouldUseCinematicViewMode value="true" />
      <shouldCameraTransitionOnClimbUpDown value="false" />
      <shouldCameraIgnoreExiting value="false" />
      <AllowPretendOccupants value="true" />
      <AllowJoyriding value="true" />
      <AllowSundayDriving value="true" />
      <AllowBodyColorMapping value="true" />
      <wheelScale value="0.271500" />
      <wheelScaleRear value="0.271500" />
      <dirtLevelMin value="0.500000" />
      <dirtLevelMax value="0.800000" />
      <envEffScaleMin value="0.500000" />
      <envEffScaleMax value="1.000000" />
      <envEffScaleMin2 value="0.000000" />
      <envEffScaleMax2 value="1.000000" />
      <damageMapScale value="0.600000" />
      <damageOffsetScale value="1.000000" />
      <diffuseTint value="0x00FFFFFF" />
      <steerWheelMult value="0.700000" />
      <lodDistances content="float_array">
        20.000000	
        90.000000	
        130.000000	
        260.000000	
        750.000000	
        750.000000	
      </lodDistances>
      <identicalModelSpawnDistance value="20" />
      <maxNumOfSameColor value="10" />
      <defaultBodyHealth value="1000.000000" />
      <pretendOccupantsScale value="1.000000" />
      <visibleSpawnDistScale value="1.000000" />
      <trackerPathWidth value="2.000000" />
      <weaponForceMult value="1.000000" />
      <frequency value="50" />
      <swankness>SWANKNESS_1</swankness>
      <maxNum value="10" />
      <flags>FLAG_NO_BOOT FLAG_AVERAGE_CAR FLAG_POOR_CAR FLAG_IS_OFFROAD_VEHICLE FLAG_HEADLIGHTS_USE_ACTUAL_BONE_POS FLAG_IS_BULKY FLAG_HAS_TURRET_SEAT_ON_VEHICLE FLAG_DISABLE_AUTO_VAULT_ON_VEHICLE FLAG_HAS_REAR_MOUNTED_TURRET</flags>
      <type>VEHICLE_TYPE_TRAILER</type>
      <dashboardType>VDT_BOBCAT</dashboardType>
      <plateType>VPT_NONE</plateType>
      <vehicleClass>VC_UTILITY</vehicleClass>
      <wheelType>VWT_OFFROAD</wheelType>
      <trailers>
        <Item>boattrailer</Item>
        <Item>trailersmall</Item>
        <Item>caravana</Item>
        <Item>caravana2</Item>
        <Item>cartrail2</Item>
        <Item>cartrail</Item>
        <Item>cannona</Item>
        <Item>cannonb</Item>
        <Item>cannold</Item>
        <Item>trailsm</Item>
        <Item>baletrailer</Item>
        <Item>modtrailer1</Item>
        <Item>modtrailer2</Item>
        <Item>modtrailer3</Item>
        <Item>modtrailer4</Item>
        <Item>modtrailer5</Item>
        <Item>modtrailer6</Item>
        <Item>modtrailer7</Item>
        <Item>modtrailer8</Item>
        <Item>modtrailer9</Item>
        <Item>modtrailer10</Item>
        <Item>modtrailer11</Item>
        <Item>modtrailer12</Item>
        <Item>modtrailer13</Item>
        <Item>modtrailer14</Item>
        <Item>modtrailer15</Item>
        <Item>modtrailer16</Item>
        <Item>modtrailer17</Item>
        <Item>modtrailer18</Item>
        <Item>modtrailer19</Item>
        <Item>modtrailer20</Item>
        <Item>modtrailer21</Item>
        <Item>modtrailer22</Item>
        <Item>modtrailer23</Item>
        <Item>modtrailer24</Item>
        <Item>modtrailer25</Item>
        <Item>modtrailer26</Item>
        <Item>modtrailer27</Item>
        <Item>modtrailer28</Item>
        <Item>modtrailer29</Item>
        <Item>modtrailer30</Item>
      </trailers>
      <additionalTrailers />
      <drivers />
      <extraIncludes />
      <doorsWithCollisionWhenClosed>
        <Item>VEH_EXT_BOOT</Item>
      </doorsWithCollisionWhenClosed>
      <driveableDoors />
      <bumpersNeedToCollideWithMap value="false" />
      <needsRopeTexture value="false" />
      <requiredExtras />
      <rewards />
      <cinematicPartCamera>
        <Item>WHEEL_FRONT_RIGHT_CAMERA</Item>
        <Item>WHEEL_FRONT_LEFT_CAMERA</Item>
        <Item>WHEEL_REAR_RIGHT_CAMERA</Item>
        <Item>WHEEL_REAR_LEFT_CAMERA</Item>
      </cinematicPartCamera>
      <NmBraceOverrideSet>Truck</NmBraceOverrideSet>
      <buoyancySphereOffset x="0.000000" y="0.000000" z="0.000000" />
      <buoyancySphereSizeScale value="1.000000" />
      <pOverrideRagdollThreshold type="NULL" />
      <firstPersonDrivebyData>
        <Item>RANGER_GUARDIAN_FRONT_LEFT</Item>
        <Item>RANGER_GUARDIAN_FRONT_RIGHT</Item>
      </firstPersonDrivebyData>
    </Item>


