I haven't played with my friend yet; however there seems to be two main problems, you
really need to include info_observer_points
(you can see a tutorial by clicking this) so dying won't equal crashing the game in some instances (and to get rid of menu being weird when you first boot up the map), and adding the nav_mesh to the download
(if you don't know about them click this), I actually would love to help you on it if you haven't made one for it yet because I like working on them.
Here is some stuff I noticed with sightlines while walking around and suggestions I have:
The red team seems to be easy to camp with just two snipers shown in these two pictures,
This seems like it could really be a problem; partially due to not being able to pick which spawn you come out of if you are on red and how if you where to try to counter-snipe them you would have to remember what angle they are firing at (and hope that they didn't slightly move) -- I have an idea though that you
might like, and that is adding a vent path from the two spawns, connecting them but also adding in another exit that shouldn't be so easy to camp:
It could have a vent drop down from the ceiling near here, letting you flank at least one of the possible camping snipers; possibly also adding some water to the floor here so health isn't lost dropping down?
and you would be able to see some vents peak out from here, if you decide to add a route
Now for some of the sniping spots that you may not like at the blue spawn:
The top two I would say are problematic sightlines for the blue team; I would recommend adding some sort of doors here (which was probably going to be added anyway) so the sightline at least isn't always so open like it is now (the first picture actually goes all the way into the blue spawn exit). The last two picture may be wanted but it seems like they may also be a bit farther back than you would of hoped them to be -
- and a word about the deathpit and sentry camping near it, in my opinion the death pit should actually be extended over to the leftmost entrance from the blue spawn, and make it to where it is behind this sentry, shown below:
which I think the death pit should be behind the sentry, due to it being the furthest away you would place it if you wanted to camp the people coming out of blue spawn. Also, if you extend the death pit to behind the sentry placement, blu pyros can airblast enemies (that for some reason want to camp this flank route).
also if you crouch right here (I wasn't due to trying to take a screenshot) you can rescue ranger your sentry without seemingly able to be headshot.
Now there are two sightlines from/to the first cap that could catch players off guard (and not in a good way);
(from 1st cap)
(to 1st cap)
I would recommend adding a crate here so it could be fixed
I really don't want you to take this as me being ungrateful for an awesome first map; because it really is an awesome first map (or map in general)! I'm still working on mine and I'm trying to act how I would want other people to critic mine, so hopefully your okay with my feedback for this great map.