Hi zythe!
As this map hasn't been updated in almost a full month, I suspect you have little intent or motivation to work on it.
Since I'm eager for a proven example of what I call "biblical KoTF", I want this map to flourish.
Therefore, I will omit problems from my feedback and instead gear it towards solutions, making it as easy as possible for you to return to working on the map.
Solution #1: Two bridges over the point area
Here's what RED's bridge would look like:
Green is lower walls, orange is floors/stairs and cyan is upper walls.
The green wall on the left would solve the issue of rotate time approaching the point area (especially if the door blocked by the stairs is moved left so you can keep it), since defenders would no longer be able to hang out next to the main door from the attacker lobby and watch all their routes by standing in one spot.
The bridge makes it doubly easy for attackers by making their rotates while already in the point area much safer (and therefore their rotates in general become much faster as they don't have to backtrack to safety first).
It also acts as a good sentry spot to prevent defenders from pushing forward.
As for the possibility of defenders using it for safe, fast rotates, I wouldn't worry too much about that, since it's not part of the allowable flag region and the cyan wall makes it so that it doesn't cover much of the point area.
If you wanted to take extra steps to make attacker rotates more favourable, you could also modify this area:
But I don't think this is a perfect idea, since the region I flagged as "The Pit" would be a hotspot for defender engi camping, even with the stairs that would make it an agonising spot to try to build in.
By the way, yet another perk of the green walls of the bridge suggestion is that it makes it easier to reach the enemy side of the arena without being stopped along the way, which is what the map design seemingly wants players to be able to do in order to prevent camping.
Solution #2: Adjust attacker pickup balancing
Move this health and ammo:
Move this health:
What I'm implying here is that the lobby may need further geometric adjustments, but to be honest, defenders holding the lobby in my matches was ultra rare, so I'll only suggest a solution for the lobby when I'm convinced that it needs one, which is not now.
Delete this health or move it up to that bridge I suggested earlier:
And I reckon that's about it!
Solution #3: Adjust the mechanics surrounding the flag
Firstly, you should reduce the region which the flag is allowed to be carried in to the concrete floor:
This prevents players from simply sitting behind this wall with the yellow pipe and letting their teammates prevent the attackers from even reaching them.
Although this isn't absolutely necessary, you should also probably adjust the geometry of the concrete arena to prevent safe spots:
With these features in place, I believe that camping would be so hard that you could maybe even make the flag heal instead of hurt (or at least deal no damage at all), since forced damage is not cool ever, even if it's for a good reason like preventing camping.
The crits for the flag carrier should probably also be axed, since it only helps defenders, which is the opposite of what we want from a KoTH or KoTF mechanic.
By the way, the allowed flag region being restricted to the concrete is also good fictionally, since why would you be able to take a flag attached via tight-ish cable indoors?
Finally, you should enable lightmapping on the radar dish prop and set it to have 128 luxels on both axes, since it will make it look sexy:
