Ugh, here we go. (Edit: notice I only comment on the gameplay of the map, because aesthetically it's not so bad, it's just not good gameplay wise)
1) Unlit and unvis'd, these tie for #1 problem.
2) also might be leaked, didn't even check until after I posted this.
3) you wrecked all of propaint1's jumps
3.a) can't get on the barrel in low to line flag anymore, that excrement wasn't just decoration
3.b) mid is longer, my timing is off for all the mid jumps on this map
3.c) no hibd from grass, no bueno
3.d) etc
4) the jumps you did keep are all dead easy airtime 3 jumps, not the smartest idea.
5) clutterfest
6) spawn room would be confusing to new players, it's a spawn room that goes to another spawn room that finally takes you to the map. Yeah that would be fun to do every round for 30 or so rounds in a match plus respawns.
7) I can't even get into the rest of the map, I didn't even look at low besides the fact that I can't get on top of the barrels to line flag anymore.
8+) loads of misalignments, untransparent ice, and messed up barrel tops. Not to mention the clashing use of textures all over the place
Listen, you seem to have gotten somewhat of a grasp on how to make a map, but originality is key. Smashing your two favorite, overpubbed maps together and wiping away the blood does not make for a good map.
Those two maps are pubbed because people have fun playing them. By combining them you basically took two decent maps and made one sub-par map by keeping the theme from both but taking out all the things which make the maps fun.
I'm almost begging you not to finish this and do something original instead! We already HAVE airtime3 and propaint1, and they're overplayed as it is.