R.E.A.R.M. - "Rearmament Expansion And Redesign Mod" is an unofficial Homeworld 2 expansion and it adds number of new interesting and various units.
Since today R.E.A.R.M. has a Tunngle room. Lot of you probably already know that Tunngle is a very convenient way to play Homeworld games online, now the R.E.A.R.M. is there too.
Download Tunngle - Tunngle.net , search for Homeworld or R.E.A.R.M. and you can play. Only make sure you're running the same version of the mod, the 0.0.3c or the fresh but unpolished 0.0.3d uploaded on Christmas.