Replace your default Silenced Pistol weapon lines :

Better Range and Faster :

$ PISTOL_SILENCED		INSTANT_HIT	125.0 130.0	347	-1		2	silenced	17	 40		0.40  0.05  0.15    	  0  0		1.0  1.0 	 6 20  6	 6 20  6  40	7001
$ PISTOL_SILENCED		INSTANT_HIT	130.0 135.0	347	-1		2	silenced	17	 40		0.40  0.05  0.15	  1  500	1.25 1.2 	 6 15  6	 6 15  6  40	7011
$ PISTOL_SILENCED		INSTANT_HIT	135.0 200.0	347	-1		2	silenced	17	 40		0.40  0.05  0.15	  2  999	1.5  1.5 	 6 15  6	 6 15  6  40	7031


Machine gun Mode :

$ PISTOL_SILENCED		INSTANT_HIT	 25.0 30.0	347	-1		2	silenced	17	 40		0.40  0.05  0.15    	  0  0		1.0  1.0 	 6 10  6	 6 10  6  40	7001
$ PISTOL_SILENCED		INSTANT_HIT	130.0 135.0	347	-1		2	silenced	17	 40		0.40  0.05  0.15	  1  500	1.25 1.2 	 6 10  6	 6 10  6  40	7011
$ PISTOL_SILENCED		INSTANT_HIT	135.0 200.0	347	-1		2	silenced	17	 40		0.40  0.05  0.15	  2  999	1.5  1.5 	 6 10  6	 6 10  6  40	7031

Stealth and Deadly mode :

$ PISTOL_SILENCED		INSTANT_HIT	 25.0 30.0	347	-1		2	silenced	17	 100		0.40  0.05  0.15    	  0  0		1.0  1.0 	 6 20  6	 6 20  6  40	7001
$ PISTOL_SILENCED		INSTANT_HIT	130.0 135.0	347	-1		2	silenced	17	 100		0.40  0.05  0.15	  1  500	1.25 1.2 	 6 15  6	 6 15  6  40	7011
$ PISTOL_SILENCED		INSTANT_HIT	135.0 200.0	347	-1		2	silenced	17	 100		0.40  0.05  0.15	  2  999	1.5  1.5 	 6 15  6	 6 15  6  40	7031


-- FOR BACK-UP --

$ PISTOL_SILENCED		INSTANT_HIT	25.0 30.0	347	-1		2	silenced	17	 40		0.40  0.05  0.15    0  0	1.0  1.0 	 6 20  6	 6 20  6  40	7001
$ PISTOL_SILENCED		INSTANT_HIT	30.0 35.0	347	-1		2	silenced	17	 40		0.40  0.05  0.15	  1  500	1.25 1.2 	 6 18  6	 6 18  6  40	7011
$ PISTOL_SILENCED		INSTANT_HIT	35.0 35.0	347	-1		2	silenced	17	 40		0.40  0.05  0.15	  2  999	1.5  1.5 	 6 17  6	 6 17  6  40	7031


ENJOY :) 