Competive and orks including trukk rush and looted wagon? nah sorry man, Needs a warboss on bike with nob bikers, and rest of the points spent on battlewagons / lootas.
Burna wagon doesnt work anymroe as you can't hurt anylonger than the template can reach, so you need a mek for the group to extend the wound range.
When taking trukks, allways take reinforced ram for rerolling dangerous terrain tests.
This seems more like a cassual saturdaynight gaming list for fun rather than competive