DISCLAIMER:PLEASE BACKUP YOUR YOUR GAME BEFORE INSTALLING THIS MOD. alright so i decided to make a Female LCPD OFFICER FOR GTA 3 model used:female02. okay heres how to install the thing first download the img tool 2.0 from:https://www.gtainside.com/en/sanandreas/tools/3852-img-tool-v2-0/
then open it hit the close button (the x button when failed to set data for comes up then it should load. click open once you get in the img tool then click:C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto 3\models then click gta3.img then click the edit button on the imgtool then put in cop.txd and go to command and hit add on img tool then add the new cop.DFF and click add again to add the new COP.TXD after you add those files close imgtool.
then go to you guessed it models then delete txd.img and txd.dir after that boot up gta 3 any car mods besides the hd carpack for gta 3 may need to be reinstalled to fix the white textures problem but after thats it i hope you guys enjoy this mod feel free to edit the textures if like feel free to convert the mod to work with other gta games too.  
 