Both abilities have a range of 30 meters https://omegle.onl/.

Guardian still lets enemies run for cover while zephyr stuns people completely.

Guardian has double the CD time: Zephyr stuns for almost as long as its CD (6s vs 8s).

Guardian can only disable in a cone while zephyr can do a 360 shutdown in a sphere around itself https://vshare.onl/.

Honestly both the game incredibly unfun and super campy since mid range mechs get completely shutdown. There's a reason why spamming RM is prefered over getting wrecked in cqc.