fusion cannon from turok 1 plus the alien weapon from the same game (fired a weird green beam which did next to no damage but then sucked inwards and did a good explosion lol)
tek bow also from the turok series, especially in turok 2 when you could get the arrows back from dead enemies
tmp on ravenshield - walk into a small room with that and a few enemies to kill and empty the whole clip in about 2 seconds, never gets old
stakegun on painkiller - stick enemies to walls and even to each other and if they get too close use the grenade launcher under it lol
sniper rifle in UT classic - face to face CTF level with 2 good snipers and youd be there all day trying to even score 1 point, great fun
smartgun on avp2 - when you jump out of your skin when an alien breaks through a door at you, the weapon just keeps on going even with your poor aim. Pure awesome lol
tek bow also from the turok series, especially in turok 2 when you could get the arrows back from dead enemies
tmp on ravenshield - walk into a small room with that and a few enemies to kill and empty the whole clip in about 2 seconds, never gets old
stakegun on painkiller - stick enemies to walls and even to each other and if they get too close use the grenade launcher under it lol
sniper rifle in UT classic - face to face CTF level with 2 good snipers and youd be there all day trying to even score 1 point, great fun
smartgun on avp2 - when you jump out of your skin when an alien breaks through a door at you, the weapon just keeps on going even with your poor aim. Pure awesome lol