Ok this is for everybody that wants to know if the fusion will run on LP:
The fusion will run on LP
with that said you will almost allways get shootdown because the regs of the tank will probably not recharge as fast as a HP. A crossy 68/45 LP is what i would recomend running on your fusion if you want to get a LP tank.
However the fusion is Recomended to run on HP to prevent shoot down
Get a HP tank if you are stumped on which one to buy.