Clarification on the not being on point/zone the best game type which I got the achievement on is push. It has a 10min game timer and the spawns are the same unless one team makes it to the forward spawn so you can hang in the back and throw kunais at flankers without worrying too much about over extending. just spam healing since you have to be really close to the robot to push it. I got the achievement pretty easy so if you are having trouble try picking kiriko on a push map. Happy Hunting!