let me explain something to you all.
anyone can use anything on any server as they see fit untill admins or scripts step in.
as stated by EA's terms of service for ranked servers :
https://help.ea.com/mx/article/bf3-rules-of-conduct
The following are examples of conduct that is not permitted by the EA Online Terms and Conditions:
•Examples of abuse include, but are not limited to:
•Playing on restricted kit servers
If you are an administrator of a ranked Battlefield 3 server (referred to below as a "Server Administrator"), you must also comply with the EA Online Terms and Conditions.
Server Administrators are in violation of the EA Online Terms and Conditions if they enforce server rules on ranked servers that prohibit or severely limit players from using any roles, kits, weapons, vehicles, or other features of the game while playing on their server. Examples of such rules that would violate the EA Online Terms and Conditions include:
•Running knife / pistol-only servers
•Preventing players from using certain weapons or items (such as flash bangs or C4) or enforcing a "pistol only" or "knife only" server rule
so pls, rahter leave that server and how it gets played out of any discussions or that server will well simply DISSAPEAR one day, and thats a promise.