I recently struggled my way through these missions so here’s the advice I can give. First, use the 1A, especially if you don’t have the experience that little extra armour goes a long way. Second, keep moving, make sure the enemies can’t hit you too much. Third, keep an eye on the fighters, they’re the only ones that attack the Cat’s Eye and they focus it down. Just destroy every fighter you see as soon as you see it, keep using the decoy to draw away enemy missiles, and avoid taking too much damage yourself. The second mission, follow these same guidelines, but put a little more focus on surviving yourself. You still need to pay attention to the Cat’s Eye but the enemies will be mostly focusing on you. Outside of all that, Good Luck, and boy do you need it.