Having problem with Campaign 1 first mission

[Suicide Junkie]

When I made the weapons placable in multiple slot types, the AIs seemed to get confused. That was quite a while ago though.

The way I do it in P&N is that there is a duplicate component that fits in a heavy slot, plus has the bonuses of an SE4 large mount. (+50% size, double damage, more $$$)

The stores sell a third type, which is the same as the light one, but also fits in heavy mounts.

The AIs end up using the Light-only or the Heavy-only.