Complex sentence: The Board absolutely does not want to talk about the fact the the Marines were short of Pioneer Battalions and 133 and the 31st were Deployed exactly the same as the Pioneer Battalions in their respective Marine Divisions.
Split into simpler sentences: The Board absolutely does not want to talk about the fact the the Marines were short of Pioneer Battalions and 133 and the 31st were so designated. There were Deployed exactly the same as the Pioneer Battalions in their respective Marine Divisions.