I saw a lot of Escalation in the Get Gnasty playlist that was up the past few days.
They seem to be painting the map with light which doesn't really go well with the Gears art style.
The spawn switching on the map is not so great, although I do know if its possible to remedy that given the map layout.
I was expecting a map like the Kryll-Storm maps in Raam's shadow, but that's probably next DLC.
Bullet Marsh just isn't doing it for me, I want to see the map slowly get engulfed in kryll and push all the fighting indoors.
Also, I found the most hilarious glitch.
If you empty out your Lancer and mash the meelee button, your gun will continuously spawn empty magazines/bullet-casings.
They spawn as fast as you mash the button. I kinda wish I had rapid-fire, just for this.
I got like 300 of them on screen during a matchmaking game before it started to slow down.