If I can only add one gun it would have to be the SIG SG-551.
But ideally if I can find the time I'd sit down and make a total conversion mod which would make the game into an SAS game which involved some CQB and some massive outdoor mission's which would take a long time to complete. As such proper weapons would be needed to take down the Apache helicopter's etc, like Stinger Missiles and RPG-7 Rocket Propelled Grenade Launcher's, aswell as M16's which can be fired on full-automatic, and can be equipped with M203's etc.
2 Assault Shotguns ~ Neostead and the Pancor Jackhammer
the H&K G11
the HK-69A1 Granatpistole ~ modified to shoot a beanbag or CS round... now you have to admit it would be fun to whack a tango with this and hear them groan in pain on the ground out cold [img]/i/smilies/16x16_smiley-wink.gif[/img]
Camper!?!? I Strategically Wait!
It is by caffeine alone I set my mind in motion,
It is by the beans of Java that thoughts acquire speed,
The hands acquire shaking, the shaking becomes a warning,
It is by caffeine alone I set my mind in motion. -- Programmers Mantra