I honestly find shove and it's associated stat a bit useless because honestly there's usually so many enemies that trying to get close and shove them is something of a Deathwish. especially as more often than not, said shove whiffs and leaves you more open to attack during the recovery frame so maybe something like some sort of visual effect t show you the range when shoving would help? . for repairing turrets and the like it's fine but for actual combat it leaves a LOT to be desired honestly. Also a large number of zed's skills feel like the risk involved (taking more damage or getting less health for higher fire rate n such) don't tend to feel like the benefit outweighs the negative. as for knockback, is that something that only happens with shove or can all weapon types gain knockback once you earn that stat through a skill upgrade etc? i feel like there's a number of things in the game that could be much better explained.