Would it be possible to have IL runs for the levels of the campaign or at some of the skirmish modes? I don't mind if not, just found it odd that it doesn't exist.

True!

yeah, how are there no individual level runs in this game, the full game has 15 missions, according to the first players live split timer

I have them set up in Island Thunder and Desert Siege expansions, but am not a mod here of the original game, this one only has the full game playthrough available