Hey, this is great! I had a bit of a rocky start with the intro scenario, but had a great time after the initial refit. Two questions which came up:
Q1: From the Codex: "Clear N Heat: Erase N marked heat on your rig. You can only do this if you harmed a target using this equipment this round."
The restriction seems like an error; the Heat Vent would never clear heat under this condition, and also Q2.
Q2: I think the intro scenario (A 3 A) is unwinnable with the suggested starting equipment: The tanks scurry to range 2 or 3, but you only have move 1, so can never get in a square with a tank, and thus can't drop heat. Meanwhile, you need 8 hits to clear the 4 tanks, but only have 4 ammo, so would need to drop heat on the enemies somehow in order to win.