1. Your ingame name: PugLife_Cameron
2. The offender's exact ingame name: ChocolutPlays
3. A description of what rule they broke/how they broke it: Using tnt cannon in lobby
4. Evidence/full screenshots. I attached the screenshot to this document

 

This doesn't really show him using the cannon.
He'd have to be holding iron horse armor in his hand.
Post a new report when you have screenshots of what I said above.

 

Thank you for the report.
Unfortunately the evidence provided is insufficient.
Should you gain more evidence in the future, do not hesitate to report this player(s) again.

Kind regards,
The Staff