Your all wrong, the mantis is piss easy to use, the reason its OP is because of the insane amount of health it has. I do use the plasma pistol to take them down, but that only works if there is no enemies around, because i always just get shot off before i can take it down. A warthog is a useless vehicle against the mantis, one rocket and the warthog is flipped, and then your FLOWERED. And i want to vote for ragnarok, since halo 1 my favorite map has always been Blood Gulch, each halo game they change the name and the map slightly but leave it generally the same. Now its ruined thanks to the mantis. Especially when team mates are FLOWER BUDDIES and give our mantis to the enemy, which is 50 % of the time.