Trukka happily followed Kham's call to arms (in a manner of speaking) to get some time away from his misses, which, we understand, would have been an even better addition to the team.
Due to his bad back, he did not get selected for a specialised position. As he was a jack-of-all-trades regarding violence, this suits him just fine.

---RIP---

Trukka found his peace in a match against a great Khorne demon. May his missus never find the way to him again.