Lance Cpl. Joshua Holsinger, a heavy equipment mechanic with Marine Wing Support Squadron 374, maintains a bulldozer Aug. 18. One mechanic accompanies the heavy equipment operators when the 3rd Marine Aircraft Wing (Forward) squadron goes out on construction missions. (U.S. Marine Corps Photo / Released)::r::::n:: - Lance Cpl. Joshua Holsinger, a heavy equipment mechanic with Marine Wing Support Squadron 374, maintains a bulldozer Aug. 18. One mechanic accompanies the heavy equipment operators when the 3rd Marine Aircraft Wing (Forward) squadron goes out on construction missions. (U.S. Marine Corps Photo / Released)::r::::n::