When that
happens, strafe to the right a bit so you stay away from the guard on the
left and continue forward past the flames and steam. Keep going until you
see the labels on the left and middle of your screen.
(I know its the K3G4, but a headshot still works
faster.) Then IMMEDIATELY target lock the non-moving guard and opening fire
while closing in your range.
Turn left towards the way you just came from (the way you were going when
you strafed right after seeing the labels) and run forwards past a partly
red and light brown building,
over to an all light-brown building where you
can see two windows and a door. Go inside the building and give the
antidote to the Aborigine Potyarre for a checkpoint.
Run out of the little underground pit and run forward up to the watchtower.
Give the guard a bullet in the head and run over to the tower. Reload if
you need to and turn right.
Keep running forward, killing the guards until
you come to a building that has an open doorway facing you. Run in and give
the Aborigine Yubongu the antidote for a checkpoint.