The only glaring problem with the game is that the player's skill or strategy has little to nothing to do with the outcome of a match. Much is determined by the cards one draws each turn and that's fine. It's the shops that annoy me. Most games, one player gets a shop that is vastly superior to the other. The way to fix this would be to let each player see what is in their shop and then choose the last card to go into the shop. That way you don't end up with one player with cards that stack and another player with a random assortment of spare parts. Mirror mode is boring.
Also there should be more than one counter to the explosives. If your opponent has explosives and you don't have the engineer, you're screwed.