TAC-50

The McMillan TAC-50 A1-R2 (TAC-50 in-game) is a .50 BMG Sniper Rifle. It is a very long range weapon. The Tac-50 is best with very high scopes. The only other sniper rifle besides TAC-50 is the M40A5.

Pros
The Tac-50 has a very high damage per shot, perhaps highest in the game. If you have good aim this gun is for you due to it being able to 1 shot an unarmoured player. It is also great for quickswitching with a AR. This gun is also very accurate.

Cons
If you miss your shot, or fail the quickswitch anyone can rush you with a shotgun or SMG and you are done. This gun is also probably very rare, along with its ammo.