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Multi Primary Weapon

Let you carry 2 primary weapon at the same time!

SMG/MG/M60/Sniper rifle/Hunting rifle: Weapon slot 1
Shotgun/Autoshotgun/Pistol: Weapon slot 2

You still can use your melee weapon! (Replace the slot 2 weapon)

P.S:Please don't ask why slot 2 weapon can't show the ammo remaining,it's a engine restrict I can't fix it,if anyone have any good idea to deal this please leave a comment there,thanks!

2013/12/16: Maybe because valve's restriction this can't be work in multiplay server anymore now,only can work in singleplay.have to say sorry to everyone.(or you can call all your friends(players) subscribe and use it in same server)

Also:It's not a L4D1 mod,please don't ask more about why can't see your hands in L4D1,I don't know why that happen.