I have the same problem with the black tent.
A list of things loaded, from ufoconsole.log:
2010/04/21 20:00:06 ==== InitGame ====
2010/04/21 20:00:07 SV_AssembleMap: Sequential map assembly in 22 ms
2010/04/21 20:00:07 CM_LoadMap: "-forest/fr_ +craft_drop_firebird +craft_crash_scout +h1 +h2 +w6 +w8 +f2 +f3 +f3 +f1 +f5 +f5 +f10 +f2 +f6 +a1 +w7 +a1 +a1 +w7 +w1 +w3" "-8 -16 0 -16 16 0 8 -40 0 16 0 0 -16 -24 0 -8 -40 0 16 -16 0 -16 -8 0 -8 0 0 16 -8 0 0 24 0 0 0 0 0 16 0 -16 8 0 16 16 0 16 32 0 -16 -40 0 -16 -32 0 -8 -32 0 -8 -24 0 0 -24 0 0 -32 0"
2010/04/21 20:00:09 Rerouted for RMA in 0.0s
2010/04/21 20:00:09 checksum for the map '+forest': 2491710756
2010/04/21 20:00:09 ufo script checksum 3151923691
2010/04/21 20:00:09 Created AI player (team 0)
2010/04/21 20:00:09 Created AI player (team 7)
2010/04/21 20:00:09 -------------------------------------
2010/04/21 20:00:09 Connecting to localhost...
2010/04/21 20:00:09 connection attempt from loopback connection
2010/04/21 20:00:09 load material file: 'materials/forest.mat'
2010/04/21 20:00:19 Starting the game...