I can't do the Wall-run jump in Democles chamber (sword chamber), is there a problem with this?
This jump can be a bit of a challenge but it is possible. The best solution here is to reduce the grapple line length so that the top of your swing is in line with the platform you are jumping to. Changing the camera angle so you are looking straight at the wall (aposed to along the wall) may help. When at the top of the swing and in line with the platform, use the direction keys to point lara at the platform then press and hold down the jump key (for a longer jump).