New fire support mechanic is really well done but I think there are a few balance issues. The most obvious issue is the interactions with other mods. For example, a fire support with mutagenic shell from pawnmorphers is an instant win against any human threat while being very cheap. A single mutagenic shell is worth 82,5 so you can put dozens of these. The same is also true for mechanoid swarm shells from android tiers+.