HL2RP Rebel uniform...

Is it possible to make/ edit a rebel uniform that functions like the one already in the game (being able to put it on/ take it off)? I want to keep the same basic clothing scheme, but just add a mask to it.

This is what I want the mask to look like.

So you want rebels with that mask? Is that all?

Just me… So far I’m the only one that needs a mask. Damn city scanners. I’m also the leader, so I need a way to be recognized as so yet also hiding my identity. It just needs to be removable, just like the original rebel uniforms are.
What kind of software would I need to do edit the uniform entity? I play as male 06, if that helps.
Does the “uniform” just change the player model?

that picture made me uncomfortable.