Half life 2 mod help...

Hiyas,
We are looking for some help on a mission based half life 2 mod which is multiplayer. In a nutshell its a similar to Americas Army and Counter Strike but not quite as realistic as AA.
Anyways looking for...
Weapons modeller - Weapons based on real world guns im sure some one out there has probably got some of these already done?
Player modeller - Also based apon a realisitic looking military , seal etc etc type characters.

Thanks
Adam