Heavy flamers are going to get hungry for a fight, but interesting list. I would suggest at least a power weapon on HQ, as your opponents with heavy armour will ruin your day regardless of numbers. Also, keep your Synapse coverage in check with only Warriors as a blanket. Missiles+ will thin out a squad of 3 + a Prime in a couple turns easy.
Should be a huge amount of numbers vs. any opponent sub maybe orks, at such a small game.