I think that to reduce the lag (experienced by everyone I know) in the Ironclaw Munitions , the level should be split into 2 separate parts

Why do this? Well the lag is caused by the constant cannons firing dozens and dozens of missles, and its too much to load causing lag.
Player who do not lag anywhere else in the game have bad lag here when the cannons fire, so this fix would be nice.

Split the level into 2 sub levels and have a mini-elevator move between