Disguises

I am proposing a game mechanic that allows a player to be able to temporarily disguise as an enemy. It could work through an item that you pick up, and once you equip it, it will make you disguise as the enemy for 30 seconds to a minute.

I've already thought of some potential issues and solutions. This seems like it might be pretty OP, so we would need to make sure there is some drawback to using this mechanic. I was thinking that while you are disguised as an enemy, you will not be able to speak or attack at all until you are undisguised. So it would be basically entirely a recon type of thing. Another possibility is that you could make some type of subtle giveaway that the disguise has, so that upon close examination, the enemy could still detect that it is a disguise.

This is just me spitballing here. Any further suggestions to make this idea better would be helpful. But I think this would really make the game interesting.