+1 experiencing same.
additionally with Friendly Fire enabled, the Tarantulator can shoot itself with its railgun while moving, making the railgun portion of the mod quite annoying.
with friendly fire enabled and the railgun disabled in the mod settings, the mod is usable and doesn't break other parts of the game....
but the railgun ammo/recipe persists and doesn't hide itself when the feature is disabled, which is a minor issue but should still be cleaned up.
either you must pick between friendly fire being off for ALL buildings + captured nests no longer reverting, or the Tarantulator literally shooting itself in the foot with its main weapon