If i am right this would be an exact gun the Nick is using. It is an Elite commander 9mm Berreta. Again a good thing about this weapon is its low jerk upon firing. also it has a substantialy range and easy aiming. It is as well very reliable and has an extensive ammo charge. Plus in  Wolfwoods hands it looks damn cool dont it!? ROCKET LAUNCHER the last but far from the least is the most powerful gun in Wolfwoods arsenal. This one is actualy shortened version of regular  RPM as it fits in a 2' feet long compartment of the cross. i firgured that by space provided for it there is room for one missile already  loaded and 6 more for reload.  Again the switch and the trigger  are located in main "skull" console

This is a picture of a RPG-29 the missile launcher. It is the closest thing to actual Wolfwood's RL, of course the real deal is few inches longer, and  again trigger has been slightly extended to fit into the skull console on the punisher. Anyway in the fire power both are same and it is 105mm caliber. weight is ntot anything too much as it stands on 11.5 kg (25 lbs).. Now if you add up the 7 rounds on 6.7 kg each it might get a bit heavy. Also it has a  pretty decent reach of 750 meters effective and 1250 with optimal damage!.Now Nick preffers his guns as well see laucnher in action only few times!