NaliColony, some ideas from me -
Start -
Remove the barbed wire. A bit annoying for defence jumping over and sometimes hitting it, also annoying for attackers hammering themselves onto the wall.
Add an armour and health pack to outside the wall like Ballistic. It would give attack and defence something else to fight for. Perhaps this would make it too much like Ballistic though.
After the front defence spawn is disabled, maybe the top of the foxhole/lift thing should blow up and create a hole so the attack can use the tunnel. It would give the attack somewhere else to go, and would create a position for the defence captain to fill.
Bomb -
I have no problem with this. Maybe add pads for back bomb defence. I think it's good that the big door takes a while to open for attackers. It gives defence a chance to get to the bomb first.
Train... there's only two things I can think of to make it better -
Change the ceiling so attackers can RL/HL more easily, or...
Create an alternative route such as this -
It would tunnel through the ramp and come out below the defence spawn high door. This might unfortunately encourage even more spawn killing, so you would probably have to give the defence two doors to jump out from, or something similar.
Also the existing low route door for defence (down the ramp) shouldn't able to be opened by attackers.
End -
The teleports are a little confusing, maybe there is a way to simplify them. You could make it so that there's 4 obvious teleports facing you when you spawn. Something like: left side teleport goes straight to left chain, right side teleport goes straight to right chain, middle two teleports go to front and castle (front closes after chains), and all the lookout tower teleports are in a row behind your back. Difficult to come up with a solution when there's so many towers at the end, but anywho
Also, I honestly think it would be best if rockets were just removed, or at least moved to inside a chain house. The chains mostly go down by quick rocket shots, and then a simple rocket launch to end completes the map. It feels the final outside part of NaliColony goes by way too fast recently.