It is commonly believed that CPs never receive any actual augmentation... but I don't think there is actually any evidence for that within the actual, mainline, canon games.

They are offered 'non mechanical reproduction simulation' as a reward for completing their tasks, by the Overwatch voice.

Ok... so... what would that be? A drug or digital/virtual sex simulation? It depends on what exactly 'mechanical' means.

Contextually, it could mean 'involving a machine', which could mean some kind of weird, combine grown/made, organic version of a fleshlight is offered to them... or it could mean 'involving mechanics', where the physics oriented definition of mechanics is ... basically as broad as any physical action.

So... if it is a drug that makes you climax, I suppose that could be administered without augmentation. If it is virtual/digital... well that could be just watching porn thats ... so good it gets you off with no 'mechanical', ie, physical stimulation... or it could make use of some kind of brain-computer-interface, which would be an augmentation, though a minor one by the standards of the HL2 universe.

They are also encouraged to get a full memory wipe as a step toward possible more extensive augmentation into an OW. This could imply that their memories/personalities have already been modified in some way.

We never see a CP take off their mask, beyond Barney, who is obviously a spy/mole/double agent.

Barney's CP mask is also noticabley larger than all the other CP head/mask models... so that the entirety of his head can actually fit inside it. Could just be minor, unimportant technical detail... could also imply his helmet/mask is custom made, and other CPs heads are... actually altered.

There's no models of CPs with their mask/helmets partially removed or damaged, afaik.

There's no evidence that a CP can... ever actually go off duty, return to their family... they are just threatened with the seperation/relocation/destruction of their family should they fail.

All that means is they signed up with the idea that their families would be protected. Maybe they knowingly sacrificed themselves for their families... maybe they unknowingly signed up, thinking they could return to their families one dah, and uh oops, stop-loss is now in effect, forever, you can never go back.

So as I see it, there is 0 actual evidence the CPs are wholly non-augmented, and there is slight, non-conclusive evidence that they may actually be just slightly augmented.

The way I see it is that CPs are slightly augmented, and basically just get more augmented as they progress toward becoming some other, more specialized OW soldier, or the various types of Combine soldiers in HL Alyx.

I admit that is an extrapolation, but at the same time, I don't think there is actually any concrete evidence that CPs are wholly unaugmented, just humans wearing a fancy suit.

If you can point out some hard evidence that I've missed that postivively indicates the CPs are wholly unaugmented, I'd appreciate the correction.