[nisxan]

Glad to see this finally sticky-ed! But can we limit this to strategies that actually work?

Here's the strategy I've given quite a few times, and I guarantee it works:

Make sure you pick up the Torque Bow and all the ammo for the Lancer before you go through the door to face Raam.

First and foremost, stay behind the very first block! Running around will get you killed the quickest, so stay under the light and you'll be fine.

Wait for him to get a little closer, and then start hitting him (aim for his head) with the TB. It's usually best to wait for the times when he walks into the light and the Kryll disperse...this keeps you from wasting TB arrows on the Kryll. As he gets closer, the best thing is to charge up the TB without holding the left trigger. Wait until it's charged, stand up and quickly aim for his head. Repeat until he gets to the other side of the block. At this point, use the same aiming method, but don't stand up to shoot him. You can blindfire your remaining TB arrows without having to worry about aiming a lot.

Now, Raam will try to come around the block. At that point, simply jump over the block and get back into cover on the other side. You have to be quick about it, but once you get the timing right you'll be set.

Once you're out of TB arrows, switch to the Lancer. You can blindfire the Lancer, but angle to camera to where you're aiming at his head. Make sure you hit the active reloads, and keep blasting him with the Lancer. Usually, he will send the Kryll off several times in a row, especially if he hangs out in the light. If the Kryll stay around him, now's the time to use your grenades. You should have all 4 at this time, so try to space them out around the times the Kryll leave on their own.

You may die a few times, especially until you get the timing on the jump over the block down, but you'll fare a helluva lot better than trying to run across the train. And using the Troika may work for Casual, but don't even bother on Hardcore or Insane. Keep practicing and killing Raam will be easy as pie.