I've made a comment on this before, but for anyone else to see in the future. As of the last major Arma 3 update, the glowing eye skins in the Avatar options do not work in a dedicated server. The issue is that they will appear independent of the players camera. So you will have two red blobs in front of your view that turn, blink, and move independently of where you look. Not sure this will ever be fixed in the near future or ever, but for now the only solution is not to use the "glowing eyes" skins.