Marines with Combat Logistics Battalion 44 stage a Medium Tactical Vehicle Replacement loaded with medical supplies, July 19. Logistical support gives Marines the supplies they need to carry out their mission, be it in training or in a combat zone. - Marines with Combat Logistics Battalion 44 stage a Medium Tactical Vehicle Replacement loaded with medical supplies, July 19. Logistical support gives Marines the supplies they need to carry out their mission, be it in training or in a combat zone.