When you start the level 343Guilty Spark, keeping pressing the "throw grenade button" repeatidly for safety,you should throw a grenade,but not get out of the pelican.GOOD!KEEP IT THAT WAY UNTIL IT TOUCHES GROUND UP IN THE MOUNTAIN THINGS!
This could take a while to get through, but if run (slightly walk, but still look like your running
it really doesn't matter. But sooner or later, you will run into a marine in a safarei hat.He should appear as an enemy, but he won't shoot, move, or cause any harm to you at all.
Well, there ya go!