When you reach the lakeshore, Ajay will see a mass funeral pyre for the victims of the attack on Banapur. Young Bhadra will appear at his side, seemingly amused by his stunned reaction to the scene. She’ll also drop a tantalizing story hint during the conversation.
After the cutscene, you have two options. Go see Longinus (whose “L” mission marker appears just a short distance to the southeast), or head toward the Y on the map into who knows what. Considering Longinus is close by and he tends to give us firearms, let’s see what our Bible-quoting arms dealer has in mind.
Before leaving the funeral, grab the Mohan’s Journal to the left of the door Bhadra goes through.
Longinus is hanging out on the mountaintop around x:525 y:478. The quickest path to him is to take the winding path on the side of the monastery.
But, if you need to gear up (a rocket or grenade launcher will come in handy this next mission) you can fast travel to Khilana Bazaar, hop onto the buzzer, and fly. Whatever route you take, you’ll find yourself standing before a not-at-all-suspicious little tent surrounded by crates of weaponry at the mountain’s peak.