I've tested 3 of these maps on multiplayer with 60-70 players:
- Six Traitor Castle by Iceqatius: with some edits is a balanced and well made map.
- Muidestein by Arch3r: the map is very small at the point that some walls are on map invisible border and leaves few space to make the siege tower work well. The side door allows the players enter in the castle very quickly making the front gate useless.
- Tower of Eternity by Akathir: players liked its design and with a night weather it has a nice fantasy atmosphere. The single path way and long run to reach the tower makes it a bit boring.
All 3 maps didn't cause noticeable fps drops.