Lol, i thought they were going to give Rank 2 Sentry Totem to Shamans.

Lol, Huntard macrospam syndrome.
If you spam macro too fast or you have high latency, your bow/gun will get jammed. It also happens if you cast Kill Command but your target drop dead too fast.
Cannot autoshot anymore.
Only can unlock the "weapon jam" bug after you trigger another critical strike from any other hunter shots and cast Kill Command one more time.