If you just want to collect frags on 2fort as fast as possible, what the best loadout for soldier/heavy?

I say:
black box, gunboats, equalizer
tomislav, sandwich, gru

for soldier i dont know if its better to use regular RL, but i think blackbox is stronger in action...+15 hp/hit is way more helpful than one additional rocket at start (i mean you dont fully releoad the RL fully anyway in the middle of the battle)

for heavy, im not sure if minigun is better, i mean 20% less DPS is signficant...but i really enjoy the faster spin up time...