Gearheads of War

Well I've been vigorously playing Gears both single player and multiplayer since release.  I am just astounded at how good this game is graphically, gameplay wise, and everything else-wise.  There is obviously the issue of team ranking which everyone is already whining about, which I agree with, and totally hope something is done to fix this.  I also am trying to deal with the issue that I can enter a ranked game, start the game off, and have someone leave either my team or my opposing team and leave it at an uneven match for the rest of the duration.  That all aside...there is something that REALLY REALLY bothers me:

Is there any good reason why anyone would use a Locust Rifle?  

I figured in single player..okay whatever, they drop off the locusts and are placed randomly in the map but I never understood why anyone would want to use it.  It didn't bother me as much though until I played multiplayer.  Every map has the weapon spawns, and so far, every weapon has its own use.  But there are spawn points in multiplayer maps that have the Locust gun, and to me it just feels like a waste of a weapon.  What are you trying to do with this gun, Epic?  Is there any chance you can replace it with a more USEFUL gun?  I don't see why I'd use this gun over my Lancer, as they are both midrange, but the Locust gun is burst-fire and has no chainsaw, whereas the Lancer is mid-range, fully automatic, and has a chainsaw slapped on it.  

Please enlighten me, am I missing something here?  Or is this gun just a filler for something yet to come?  Maybe I haven't realized the true usefulness yet but I am yet to see anyone else boast about this gun or even use it.