Playing co op with my bros on Halo Reach and ramping the semi trucks on the one level with the jump! Meeting the flood for the first time on CE... Scary and exciting! Halo 2's opening scene. And the feeling you got after driving the warthog across the explosions and beating Halo 3. Many great games of swat and slayer. I loved Halo 4's multiplayer but 343 will never make a campaign that gives you that true Halo feeling.