I am enlisted, have been for 25 years, if you are in ROTC, I can't think why you would want to enlist in the Guard. If you want to stay in the guard, get your commission first. If you want to go AC, get your commission first.
Everyone always wants to be infantry, well there are lots of other jobs which are just as rewarding. Someday this war is going to end, and then it will be back to guarding the motorpool and changing pacs on the tracks because something needs done.
If you want a job which always has employment, go EOD. There is always ordnance to be destroyed, IEDs to be rendered safe and VIP missions to be done. The quality of people can be slightly better as everyone has a security clearance and a year long school has a tendency to eliminate lots of fools.