Was testing out some really basic spritework. Basically got fed up with how ugly and big I found the original icon for shouting "Take cover!" was, so in response I made this after which I then inadvertently made the "Medic!" counterpart obnoxiously huge instead. Oh well.
Both sprites are animated (frames showcased above). I don't know if it's possible to upload animated .gifs to Gamebanana to show so sorry about that :( (here are previews though courtesy of Gfycat: "Medic!"; "Take cover!")
If you're looking to install one or the other, note that saveme.spr is the sprite for "Medic!", and grenade.spr is the sprite for "Take cover!"
All credit goes to VALVe for the original textures. Installation instructions are included in the readme.