I played this map today in the beginner-mode alone, because i love wave based mission maps and I don't have the time to gather teammates.
I often had to withdraw very far, so that the zombies don't fall me in the back.
I've found a few errors at this time:
.) At Wave2 I ran from Hold2 to Hold1, some zombies got stuck on top of the benches inside the church or even hung in the air, when they jumped from the 1st floor.
.) At the already opened altar the spiral staircase begins, if you see after 10 metres to the top, there is a piece of undefinable surface.
.) The most important one! When I came at Wave4 to Hold3/4 and already heard the first zombies, I ran back again to the big room with the pentagram on the ground, the Rescue Trader, so that I better defend
myself. As soon as I cleaned out everything, I found out that between Hold2 and Hold3/4 a Gate hinders me to go forward.
The last one is likely only one error for soloplayers, but I think it could interest you Fel.
Nevertheless, the map is realy realy great!!!
Very well thought-out and fun for nearly 3600 breathtaking seconds!
I'm looking forward to other works of you in the future!