I can't even see why anyone would go through the trouble of trying to master these techniques, altering their field of vision (which adversly affects your aim) in the process. The only situation in which I can see this being useful is for running back to a squad of marines for backup and/or trying to save yourself from getting another death on the scoreboard, and by the sounds of it, you wouldn't be able to go fast enough to avoid that under most circumstances. I just walk around normally, alone or with other marines, hunting skulks or whatever, or I just sit back at base in case a skulk or two decide to rush (they usually do). I get killed a lot, but that's mostly because I'm very new to the game. I dunno, I just don't see how slightly increased running would benefit you all that much. Just run around and shoot. :p