Invasion Slayer is ANNOYING as hell when the other team is coordinated and all your allies want to do is kill things instead of getting objectives. 2 games in a row all my allies were running around like headless chickens, I saw an ally trying to snipe an elite with the DMR for 5 goddamn minutes before I TK'd the idiot. Honestly I prefer regular invasion when the Defenders aren't MLG idiots and the game can go somewhere. As for Slayer, I like it when both teams are organized and work well, not why I just stated about the idiots.

Slayer also tends to bug me when I randomly die from half-way cross the map by some idiot with a DMR, but thats mostly player behavior. Slayer also needs to work on where it spawns you in conjunction with the objective. I don't like trekking the entire damn map only to have a scorpion in my face.