+1 this Except the memory bit , even with a lot of people 25+ connected memory is not an issue (8-12G on average) ,
my mission uses all aircraft in the sim and uses MOOSE features
Havoc Server - hosts up to 30 people
3.4Ghz Xeon
32G RAM
64 Server OS
1GB Network
IP 4 Only
NO MODS
I will echo what Drexx has said, I see a LOT of people connecting .... for ages
then the poor buggers get disconnected before fully getting to the server.
NOTE: I added which protocol(s) the network card on the server is configured for