I have this game on my hard drive called Pimp my Gun, it basicly allows you to stip a weapon down and customise it however you like.
Here are two that i recently just completed, both are from the Base M4A1.
I'm open to suggestions if you want to see a custom weapon.the options for weapons are:
AR's:ACRAKMAK-74AKS-74UF2000G36CG36KH&K 416H&K 417M4 CQBRM4A1M16A1M16A2M16A4CAR-15SCAR-HSCAR-LSteyr AUGM14MK 14
LMGS:M249Mk.46SMG's:MP5A2MP5A3MP5SD3MP5KAUG Para
Sniper Rifles:M98 BravoM2000 InterventionMk.12 SPRSR-25Dragunov
Keep Low. Move Fast. First Kill. Die LastOne Shot. One Kill. No Luck. Pure Skill.
Badass! And a little overkill.
Vince Johnson - A merciless enemy but a powerful ally.
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Here is overkill!!