It would rule if you could be a K9 or a Doberman for both sides... you could have like keener sight (look farther like scope) smell better, hear better.... and go gnaw on the enemy losers! w00t!
But think of it -- you could creep up on people really quiet like, AND there would be like a 'scent' trail sorta like how they put the 10yd marker on the field for Fox games... if you're near a scent of someone it shows as a trail on the ground. w00t!
i thought that is FUNNY as hell. not serious at all, but that would RULE to see a pack of dogs charging normandy!
or maybe those bugs from star ship troopers
on normandy above the horizon a huge pack of bugs come charging and slicing the crap out of everyone and then theres the fire bugs and the flying bugs
you could be almost unstopable!
Why would you be able to see further? A dog's sight is much worse than a humans. They see movement better than we do, but if something isn't moving, they can't see it, even if it's right in front of their face.