Haha titans hulk smash, that's pretty funny, I personally have memorised every heavy ammo spawn in every map, once they announce it try to look for the spawn to pick it up, as for getting few kills with heavy weapons look for semi to long lines of sight to have space between you and your opponent, or if anything if you get a rocket launcher with void just play control and blast it when the enemy tries to cap a flag, I know it can feel kinda noobie but fusion rifles will get you through the bounty crazy fast