:West did say the whole is to "Find out who ship the drugs". 
 :ps. I'd like to suggest rewrite some of the content with (according to those mentioned above): 
 :Because the team members didn't exist and West seems to be officially dead At the end of the film, the true events in the jungle continue to be a mystery. 

 :At least the true events in the jungle is really a mystery. 
 :''''''''''