You need skill to win, the skill of the players in a game includes throwing grenades to kill you. Throwing grenades is part of the game. If you can't stand getting blown up and can't get away from the grenades then you can go cry about it. Just learn to avoid the grenades. Halo feels NOTHING like COD. If you play it you will notice that the support upgrades and tactical packages have hardly any effect against other players but mostely pertain to a persons likeing in their loadout. Stop making a fool of yourself.