Xu Cheng didn't realize the importance of intel until he began preparing for the operation.
The Dragon Division indeed gathered too little information on the Shanling Financial Group. Rather, they paid more attention to the movements within the government, and they didn't investigate too much into other private financial groups since it wasn't urgent.
So, it would be useless for Xu Cheng to count on the Dragon Division. Besides, the motive of Xu Cheng's operation was revenge, and it wouldn't be allowed anyways by the Dragon Division. Now, he threw away all kinds of communication devices on him so people wouldn't try to contact him and convince him not to do it. So, without backup, it obviously wouldn't be feasible to destroy the entire Shanling financial group, but he could still try to find the culprit behind the assassination attempt on his wife.
He then flew to the black market in Mexico.
