ok my thoughts.
Cold spot:
Love the half of the map that has the mega health. It has a good flow to it, and the item placement works. Im not fond of the half with the strength, mostly because the upper level walkways on the sides seem like they are not needed. I think you could eliminate them all together.
Also, you seem to have items in every corner. I'm a big fan of having groups of items so the player doesn't have to focus so much on finding them when they are needed. That probably works fine for a DM, but for a duel it seems like too much of a chore. You have plenty of armor and health shard, which is great. Perhaps take those 25 healths that are scattered around and put 1 at the end of each string of armor shards. My ideal is that a player that is not in control can get a decent amount of armor and health in a few areas. I think stormkeep did this well in the area by the crylink. Then put the ammo in groups together, rather than having them so spread out.
A few other things, the teleporters seem unnecessary. I think the map works well without them. And the dark corridors could stand to be just a bit wider. Idk if it's the textures, but the well lit spots are really bright. It gives it a snow blind effect, which is the reason skiiers wear tinted goggles. Way too bright for pleasant gameplay.
In-Depth:
Has great potential. I'm not a fan of the nex placement(i think that would be a better spot for a mega), but that might just be my preference. I think this would be a great map for telelporters. I had an idea for one when I was running around, in the dark area facing the mega health. it would allow people out of control to teleport in and take a pot shot when the mega respawns.
[img]
[/img]
The other end of the telporter could be somewhere out of the way on the other side of the map, perhaps below the hagar.
Another thing, the jump from the mortar platform to the area with the armor shards is too difficult, imo. I haven't figured out circle jumping yet, so i can't make the jump. I try to maintain momentum, but it's just an awkward spot. My suggestion is to extend the ledge from the armor shard platform out a little.
Idk if you want to hear this, but I have a suggestion for weapon placement. I'd put the nex in the top middle areas with the armor shards, and put the mortar on the platform above the 50 armor and jump pad(right before the current mortar platform). Then I'd have a mega armor on the current nex platform.
One last thing, the rocket room is much too dark.
Overall, i think both maps have great potential. I would love to see them polished up and then given a proper Xonotic theme.