You can find the full list at the related link given below.
You cannot get a silencer for the assault carbine in Fallout New Vegas I'm afraid, the only guns you can get silencers for in New Vegas are the sniper rifle, the varmint rifle, 12.7mm pistol and machine gun.
You can't now. You have to leave the bosses alive and talk to them about buying guns from Mick & Ralph's again.
When you start at goodsprings go to the general store they'll have some guns. Also if you follow the quests someone will give you a gun and some ammo. Oh and don't forget to look for some traveling merchants.
either pass a speech check with swank at reception, show him some evidence (benny's smokes and lighter) or just steal them back from the safe
minigun, fatman, experimental mirv, missile launcher,
Fallout 3 was created by the same people, Bethesda Studios. Many call it "Oblivion with guns."
Lots of guns still exist. That is a pretty vague question.
none of my guns work no more it jus happens randomly and half the time wen I walk my guy holds the gun above his head...any ideas on wats happening?
ammo and not vary good guns
This depends on the type of gun, the Gatling Laser is very powerful and so are the Rocket Launcher and Plasma Rifle, however these are all different types of guns.
Not free would be Fallout 3...thats all i can think of
They already do.