Ok so I CAN NOT get through this part. I am in Egypt in the obelisk of khamoon and Im in the timed run to get the first artifact. It's not the time that is an issue, cause at this point I don't even want the artifact, but I cannot get past the grapple/wall run. Every single time I try to do this, I cannot get high enough on the grapple to reach the ledge on the other side. I have tried looking at the videos online, and I have tried throwing the grapple out when I'm at the highest point and even right after I jump and I still do not even get close. Any help would be so appreciated. I have tried to do this no less than 20 times at this point.
HELP PLEASE!!!