The style would fit SM very well (and CSM to an extent, since they use imperial tech), however the HUD looks rather cluttered. In my opinion, all the elements, except the target indicators, should be decreased in size. The image on top left serves no purpose and should be removed. The flavor text in bottom left could be used as a chat box. In that case, it should only appear when a new message is received, or when the player is typing something. On a separate note, it seems everybody has a fairly good idea on how SM and CSM HUDs should look like, but there are very few ideas for Ork and Eldar.