I have to say I am not a fan of the direction that FFG is giving to character evolution. I don't like this "awesome characters" which I think they are more in line with the Naruto cartoons than with Star Wars.
Yet, it is still a great game, just I will keep it on a more low profile level for PCs (and NPCs).
In fairness, the Hired Gun along with the Bounty hunter are the quintessential combat-oriented careers in EotE. I suspect the signature abilities for the other careers will be quite a bit more subdued.
The ability to clear out any number(?) of minions from an encounter seems rather overpowered to me, but that could be because I make heavy use of minions.
Well when you compare Explorer:-
Get one extra manouvre
Hired Gun
KILL EVERYTHING! (when upgraded, 1 or 2 rivals)
I mean, it may be better if it is kill everything, within one range band (i.e., melee only killing all in close, with a blaster everything in medium, with a rifle everything at long range) otherwise it REALLY overshadows the gain an extra manouvre as the Hired Gun will be getting loads of extra manouvres to count for changing range bands to shoot ot hit.