If you haven't noticed already, playing Blackshot at GCA (Garena Cybercafe Alliance) Member Cafes will garner you an additional 5% EXP/BP! This bonus applies and stacks with your current bonuses in-game as well!
This promotion applies to all the Cyber Cafes in this list: http://intl.garena.com/gca/listing/
However, there are some GCA Cyber Cafes that did not register all their PCs under the program, so you might want to request/ask the person on duty in the Cafe to give you one with the Gold Membership.
The Blackshot Team