I play both on ICO & Hamachi, therefore i've installed 2 SOASE Trinity on my PC, ver 1.34 (ICO) & 1.32 (Hamachi).
Hamachi network: Sins Diplomacy 2
There is alot of place in this network bcs it has no owner, it maxed out to 256 players.
Playing on hamachi is faster than ICO, so i must set it to fast speed on multiplayer host.
Btw on this hamachi network, there're always some players online for chat to arrange upcoming game.