HL2 HEV suit FTW , can it passively regen you at 1 half a heart every 10 sec, like the companion cube did before ( dunno if still the case ) ?
No! That'd be terrible! It's from one of the last FPS to not have regenerating health(If you'd take Episode 2 from 2007 at least. 1998 still had plenty of oldschool FPS!)! It would just be wrong in to many ways for it to give regenerating health!
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Another thing if possible is to make it unbreakable, only require energy to run, like in HL2, where if you power is depleted, the armor is almost useless
I agree with the first part, however, I must disagree about it being useless without power. If you're out of power, you can still take quite some shots, because you're wearing a damn piece of metal and not some tiny shield generator. It may not be ass effevtive as with power, but it still keeps that metrocop from just shooting your heart. And technically, the HEV suit still fpr example applies antidotes when poisoned and drugs you when you fall down without (armor) power.