Well in Gears of War and Gears of War 2 it was quicker to get around by jumping often as opposed to roadie running.
But in Gears of War 3 it's quicker to just roadie run. I'm sure some of you already know this but evidently many don't because I see many players jumping to get somewhere quick yet there is no benefit to this.
So yea for those who've played the other Gears of War games it's now quicker to just roadie run the whole way. Maybe a jump as soon as the match starts will give you a tiny boost like always but after that it's roadie run all the way (no jumps). But not an easy habit to get out of lol