Definitions by Detranova
D&D
I say again, an excellent role-playing game. Slightly modified, it is also an excellent training program for negotiators, generals, hostage rescue units, rescue units, crisis units, the police, and the army, not to mention any other job that requires patience, intelligence, and a bit of luck.
Every fucking game in existence is based on D&D! Where else could they have possibly gotten the idea of character statistics, Duke Nukem jokes, real-life situations, army games, diablo, and rpg games(including mmorpg's)?
RPK
A common russian automatic rifle, often associated with the AK74su. Highly comparable to the SAW light machinegun.
M40A1
A long range sniper rifle that is preferred by the Navy Seals. It can often be mistaken for a .30-6, though the two weapons are radically different.
M-16
Quite possibly any of a large variety of such rifles, the most widely known one being the M16A2, which was first introduced during Vietnam. Despite popular belief, many varieties of the rifle are not automatic, though special varieties do come with optional full-automatic firing. The standard M16A2 of the Army is not automatic, though.
M16A2
The most widely known rifle in the world(next to the Kalashnikov AK47), the M16A2 is not fully automatic, but fires in three round bursts that are perfect for clearing rooms or long range attacks.