Not tied to any specific scenario:
1) A scenario ID tag of some sort. The purpose of this would be to prevent players from joining a netgame tied to a scenario they don't have. Say for instance somebody is hosting an EMR or RX netgame... players who accidentally join this game while running regular AO infinity would be in for a very bumpy ride.
2) Let the infravision powerup negate the fog. As it is now, fog+infravision powerup = bilndness. But if the infravision powerup lets you see through fog, the thing would become quite useful.