Seems like the Physics is a little silly at times. Toss a grenade forward and 50% of the time, it will bounce straight back to me for a instant kill. The only weapons worth taking is the high fire rate guns as Spread guns don't have that much impact on the zombies. Reload seems... wonky? Sometimes I get an awkward reload minigame when I manually reload for a faster reload but auto-reload feels slow, even with 50% Reload perk.
(Edit: just realized that the Reload Minigame seems to be tied to the Gatling Gun and nothing else, maybe one of the Shotguns? Quit after reaching Day 4 Afternoon)
Also, what is the point of the roll? It slow, clunky, and doesn't save me from anything. I thought I could use it to escape a cluster of Zombies whenever I get surrounded but that doesn't work, it's infinitely better to just Sprint around to escape.
And Finally, the Xp stars can make pathing a bit obnoxious, especially when I gotta wait for a Shotgun or Rocket Launcher to despawn to pick them up so I can keep my Gatling Gun