Just kidding. You IS Asmos have a leadership problem, not a numbers problem. Find someone who actually knows how to siege and have them lead your league, whoever has been doing it up until this point is...bad.
Rush the arti room and kisk, while the Elyos hold the surrounding artifacts? BAD.
Ignore the artifacts in the core and let the Elyos pump you with temporal stones and wipe your kisks? BAD.
Attack the gates at Siel's East and West instead of going to the secret entrance? BAD.
Have multiple Asmos live streaming your league chat, kisk locations, and telling everyone that