Ground combat
From FreeSpace Wiki
Aside from the cutscene known as "Hallfight" from its filename, there is almost no mention of ground-based combat in Freespace. Hallfight forces a few commonsense conclusions on the nature of GTA weaponry, namely that it really can't be traditional guns based on its calibur and the sort of noise it makes. Beyond that, extremely little is known about weapons and tactics of FreeSpace-era ground combat, though it is frequently pointed out that most FS fighter missile weapons are equivalent to modern tactical nuclear weapons and so probably unsuited to atmospheric use.