Endless mode sugestion

I've been looking at other comments lately about what the endless mode may include, and they don't seem to touch on how Payday 2's mechanic could be a good system for this gamemode.

Here's what I think should happen: The game starts with 'Wave 1' as usual but when the last of the Zeds are put to sleep, a 45 secound session of when the trader is availble begins. But, low level zeds such as the clot, crawler, cyst etc. will spawn at least 5-8 during that period, (regardless of what difficulty the game is the trash zeds will always be set to normal difficulty) making the trader time a vulnerable time as well. This keeps things active and promotes quick decisions at the trader. When the trader session does end the next wave will kick in and if there were remaining zeds from the 'trader session' they'll join the wave as well.

Another good Idea (Which is from a mod creater called Motormouth who made 'Unofficial Endless Mode'. all credit to this guy.) is to add bonus rounds with only one or two types of zeds in large numbers into the wave.

Endless mode sugestion