>Killdogs
Looks like Killdogs need to be trained to compensate for muzzle rise. Towards the end of the vid the 'dog' lays prone. That seems like a much more stable rifle platform than when it is standing on all four legs. Muzzle stabilization will soon be an upgrade, as will enhanced EM sensors and video.
https://www.newscientist.com/article/2293908-us-military-may-get-a-dog-like-robot-armed-with-a-sniper-rifle/
US military may get a dog-like robot armed with a sniper rifle