If you could get a treatment that either enchances your body structure, bones muscles organ, blood vesels and elastin so you can survive much higher overpressure or having bulletproof skin that will stop up to a round of 308 on the chest.

You are getting shipped to an active warzone.
Alternatively you could pick an enchancment like redundancy that allows you to get shoot trough the brain and keep walking, bleed a lot and still be on your feet, so you survive a lot much more brutal punishment but its still gonna hurt but unless it destroys completely your brain you are likely to survive it.

The improved muscles and bones just seem generically more useful than bulletproof skin. Like if I never once get shelled, i will still benefit from stronger bones and tougher organs, but if I never get shot then bulletproof skin doesn't really help with anything.

I would choose to hide your shitty, low effort slide thread.