The soldiers' clan tag is [cSE] for now because Battlelog is inconsistent in the clan tag department. The actual tag is [C.SE].

Our servers are:
Training Server (16s):
http://battlelog.battlefield.com/bf3/servers/show/pc/02df30a6-7734-428e-9415-497176184e4b/C-SE-Clan-SilentEternity-BF3-Training-Server/
Regular Server (32s):
http://battlelog.battlefield.com/bf3/servers/show/pc/48211278-b365-4f50-a0ad-b50afa7ea283/C-SE-Clan-SilentEternity-BF3-Server/