A Deep Dive is when you play seperate missions back to back, keeping the health and ammo you've lost to make it harder. Void could copy this feature, starting your mission on the ground floor, then after completing you could choose to continue to the next floor of Hotel with the ammo and injuries you've sustained. The loading screen between levels could show your squad slowly ascending and covering a stairwell in the hotel even
this way people won't have as much lag trying to load massive maps, what do you think? :D
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