With the new codex, my techmarine mini was no longer a good combination so he needed an update. It also did not hurt that he was damaged in transport. He has a metal bolter so his power weapon needed to go since he could never get the +1 attack from the bolt pistol. Replaced the arm with a pointer from the command squad box. He can now direct the fire of his servitors if I only had more than 2. He is unlikely to see the table anytime soon since I never use techmarines but maybe someday for an Apoc game he can hang out with some vehicles as a repairman.