The closest thing to Black Ops 2 multiplayer.
Just like the main series, knowing where the "head-glitch" spots and flank routes are will give you a massive advantage. Conclusion Call Of Duty - Unblocked Games
For a 20-minute break in a computer lab, 1v1.LOL or Bullet Force deliver 80% of the dopamine with 0% of the installation hassle. Just remember the golden rule: The closest thing to Black Ops 2 multiplayer