Pretty good.

PROS:
Being able to slide on the ice is a n-ice touch badumtss *crickets*.
Not too big or too small.
The scoreboard/jumbotron was COOL.
A hockey rink is a good idea which I haven't seen in a map before.
The fog and stuff gave the map a very cold atmosphere.
CONS:
Saw no pipebombs or molotovs.
Weapons and some other supplies are spread out, making it hard to find the weapon you want/hard to find things like ammo packs.
The fog is a little too dense.
No structures you could stand on like the scaffoldings in Dark Carnival Concert.
A little hard to find the radio thingy to start.

Decent.

I've watched your build logs and understood where you came from, still I was able to rush through Map 1 easily, Map 2's crescendo was cool but maybe put the alarm room further away or make more obstacles along the way? Because it was rather very easy to deal with. Map 3 was interesting but the water looks bad and unrealistic and I actually got incapped on the lift while it was going up and fell off of it, the bots whom were on the lift wouldn't save me, causing me to restart the level. Map 4 was pretty boring, as there wasn't many places to be at, I just stayed at the basketball court and killed the hordes and tanks with ease, I like the helicopter being able to incap people though, nice touch. Also Map 4 was too open for me. And there's also some problems with supplies in saferooms, they are floating under or over tables and other objects they are supposed to stand on. Everything else was good or okay, I like the map, not great but not horrible.

Decent.

Pros: Good length, Good design, Good player leading, Nice amount of supplies. Cons: Too many crescendos/panic events, Weird connection between Map 1 and Map 2, Map 2 felt very long, No dialogue, Train was slow when it arrived.