I love the idea, it's just that fire warriors are a vital core, being troops choices, so will be a target for lots of enemy fire meaning that you may need a lot of them if they're to survive and capture the game-winning objectives. But crisis-based armies tend to work, I'm trying one at the moment with only two squads of fire warriors in devilfishes but I can only seem to draw, contesting enemy held objectives with battlesuits, as my fire warriors are all gone, leaving it as all-out annihilation if I want to win.