S!
There aren't a whole lot of 4.11 servers on yet last time I checked, so 4.10.1 + Ultrapack 3 will get you into most servers. It's quite easy to install too. Just download the full package (torrent) here:
http://ultrapack.il2war.com/index.ph....0;attach=1712
..and RC4 patch:
http://www.gamefront.com/files/20612...RC4_Client.exe
1) Patch clean game up to 4.10.1
2) Unpack/install UP3 into game folder
3) Unpack/install UP3 RC4 into game folder
4) Fly
EDIT:
If you liked War-Birds or Aces High 2 Arenas read this:
http://forum.1cpublishing.eu/showthread.php?t=19366
Still uses 4.09 and UP2 though, but excellent server.