I disagree with the belt rig advice. A chest rig holds more gear, is more affordable, is easier to don and easier to work with.
For that matter, it can also be worn low around the belt if that is where you like your gear, in fact what is a belt rig w/suspenders really but a skinny chest rig with no space that is worn low around the waist and has about six separate parts?
To get ready for class, I just pick up my chest rig and put it over my head like I would a t-shirt and snap the buckle in back. Done. To put on a belt rig, first I have to put on all the belt pouches and holster (and hope they are snap on/velcro so I don't have to remove the belt to do it). Then I attach my drop leg rig. Then I attach the suspenders that I need in order to hold up all that gear.
I do believe in training like you plan to fight. That is why I have a chest rig; because in the event I have to fight with a rifle I won't have time to put on my belt, attach pouches, snap on drop-leg pouches, attach suspenders, etc. I also won't be walking around with all that stuff on in normal everyday life either. A chest rig can be kept ready to go and can go on in a few seconds.