can anyone tell me how to kill the big root, when all the gang are there. its when the man goes into the big root it ends up his brother the root so he kills his brother on the ground, all the gang come in and the satchel on the tree in the cave has medic etc, hope someone knows where im, its the big root tree i know you have to kill the roots around it but impossible, is there an easy way.

Just make sure you have plenty of health and ammo. Once you destroy a root there will be a white light, you and your partner have to run to it quickly and stand inside it until the black smoke (I think that's what it is) is gone, or else it kills you in one hit. Eventually you are going to have to run through the black liquid to get around the plant and get the other roots, so be careful, be quick and don't stay in it too long. You have to do this for both sides.

As for battling the second time, just have two grenades, you only need two to kill him. If not, just use anything you have.