Yeah it seems a confusing mechanic that doesn't really add anything, think for consistency I will make all planes need rearming when land. I do like the idea of queuing up small squadrons of planes to launch on a key press, it really rewards players for planning ahead. Will have a think about best way to do it so player has enough info to make the decision (eg allow player to think - aha I should have 3 reds ready to go!)