-Re-added vent above lower Wasteflow
-Marines can now get into that vent using the barrels and doorframe to climb up
-Slighty scaled out the doorframe near the DAT-1 vent to make it easier to trick jump into the vent
-Smoothed out movement below the walkway leading from Vent to Puri

-Added a ladder into the DAT-1 vent.
This will enable Marines to get one level higher in that vent system, but still requires two Marines (one for boosting) to get into the highest level

-Fixed wall/floor ARC exploit between Shipping and Vent

Changelog:
-Removed the vent above Lower Wasteflow
-Added a vent between Purification and Ventilation connection
-Improved player movement around that connection and below stairs
-Closed off the door a bit more coming into Ventilation from Puri
-Moved Pillars/Walls at that entrance to make it harder for Marines to attack Ventilation from Puri
-Added a Pipe/Crate combo so you can jump up on the higher level of Ventilation from the south side
-Moved the Powernode in Ventilation to be less vulnerable
-Created space between the scanner and container in Shipping
-Removed the space above the crane in Shipping (no more evolving, bilebombing etc.)
-Added a glass hole at the northern entrance of Generator
-Smoothed movement around that area
-Added some obstacles into Monitoring