[MERGED PR] Gives captain a mindshield

[Sord213]

I think Mindhacks would be a lot more interesting mechanically if they kind of worked like rev implants. Instead of Mindhacks allowing you to instantly take someone over with one click, you would have to damage your target significantly (near crit or crit) at which point the mindhack will kick into action and will heal the target out of crit (bullet fragments be damned). Alternatively, you would be able to flash/stun your target and the mindhack would also work. Just a thought.

With this implementation I don't think mindshields would be necessary.

If the mindhack wasn't instant it would invalidate the usefulness of the mindhack implant entirely. You are catching them unaware. If they have time to scream "I AM BEING MINDHACKED BY ANTAG MCTRAITOR" while you try to kill them what's even the point? Everyone knows they're either mindhacked or you're an antag now. Mindhack would go from being a very good item to a "never take this" item.

WRT beating people into crit: that's basically what you have to do already. Just gotta beat them a little more till they're dead, or sneakily cut out their implant (this never happens except maybe on RP)

Captain is slowly being shifted into a more serious role, instead of a joke role, which I view as a good thing. This helps that shift, while still keeping the mindhack implant relevant.