Maintenance Formula

[Jubala]

I agree, fighters and weapon platforms need a small upkeep. Not so sure about sats and mines though as they are strictly drop and forget. Well, the mines anyway. Maybe give them a lifespan? After x years there is y chance sat/mine won't work. I don't think troops need much of an upkeep as they tend to die like flies when invading anyway. At least in the demo they do.

Anyway, if fighters and weapon platforms get upkeep we should be able to retrofit and scrap them. I want to be able to scrap all units except mines anyway, regardless of upkeep. If we get to retrofit them the can't cost more than original design value shoould be set higher than for ships. ie the difference in cost allowed is lower. Makes sense?