Ted, from Rivet Wars, has posted the above image of his Trench Raider concept. I'm hoping this sees the light of day as a resin piece. Here's what Ted has to say about the design:
A sort of crazy unit that under the cover of darkness will sneak over to the allied trenches and then just start throwing grenades around, causing havoc with only a pistol to defend himself. Not many of these guys ever returned from their missions.