The Revolution is their original Redfield-comeback scope and is assembled in the USA.
The Revolution/TAC appears to be the Revolution with a MOA-hash reticle and target turrets.
The Revenge is a hunting focused scope with an interesting rangefinding feature. Made in Philippines, I believe.
The Battlezone is a faux-tactical scope with a BDC elevation turret and MOA-hash reticle. Made in Philippines, I believe.
They are all inexpensive, decent scopes. Not necessarily the best choice at their price point, but not the worst either. I've owned the Battlezone and thought it had pretty good glass, but a clunky reticle, quality in line with the $200 price, and mine appeared to have inconsistent tracking. The Revolution series seems to get good reviews.