If you are talking about the mod Firestorm Over Kronus then i think it should be pretty much the same, they do have new textures and many other stuff but the engine is the same and the mod might be a little heavier than the original. But the only recommendation i have is to test it yourself. If you have some lagg just lower some settings, preferably the ones i listed before but also maybe change the screen resolution and textures. Try 800x600 for resolution and medium textures if you have some lagg.
-- INTEL 9xx SOLDIERS SANS FRONTIERS
