When you first join, you are put into Opus Corporation TS (see ranking page). If you're

good enough and have a name change, you will be placed into Opus Corporation.

 

Here, you will get your uniform, and you may be allowed to participate in crew battles. If you are a very experienced player, you might be invited to the Sentinel Division. This is the squad with the utmost elite players in Opus. The emblems are as follows: