There is an additional issue (thanks Fen) - one cell cannot host two Rad Sites at once (a radiation-emitting weapon destroying a Nuke Reactor or so). I cannot fix this quickly, and this level issue is somewhat minor. I'll leave the maximum level global for now.
I'm wondering where the Radiation tags should go.
RadLevel is a WeaponType tag, but I believe radiation should be on a Warhead instead?
The way I see it, the Weapon is what you fire with, the Projectile is what you fire, and the Warhead determines what happens when the projectile hits something. Therefore, radiation should be on warheads?
Question: what happens to maximum level when two different rad sites overlay the same cell? The rest already works, this bit is the only thing left.