Yes. I believe you have to go into Texplorer and extract the normal Shepard face texture and the injured Shepard face texture and open the injured texture with Photoshop (you also need a DDS plugin) and replace it with Shepard's normal face texture, then you would overwrite the injured Shepard face texture with it. Then you will have to open ME3Explorer and install the new texture with TPF Tools if I'm not mistaken... It's actually pretty easy and probably best explained with a video, lol.