Ok it was at max 12 players. It was really fun i was hiding and snipering people.. then it started to get very laggy and everyone was kicked out. I looked at the server log and it said
"Wilburnforce has left the game
Silx has left the game"
and it said that for every player at the same time. I dont' think everyone left at the sametime..

my server is soldat://68.14.173.61:23075

(Btw that's awesome that they make soldat a protocol ^^)