so i'm on this bit. i met with the other assassin and we chatted and he ran off. then i freed the other 2 assassins (nice use of the old "distraction bomb), then had to run off towards some other part of the map.
And the Sentinel's up on the roof, "blah blah blah"...then the other assassin that i'm with says he'll use the rooftops and shoots up a ladder, leaving me to run after the sentinel guy...but for some reason i can't run - i just walk really slowly and get killed by 2 templar guards. I though maybe i was locked on to one of them, but i'm not. i tried to kill those 2 guards first but don't have time - after about 10 seconds i lose synch because it says i dropped too far behind my target.
why can't i run?