As much as i am aware that commanding while cells closed is not allowed, i know that this thing does not require a server-side ban.
And for the CT-ban, i believe this thing should only be pointed out to him so he can learn it.
If an other offence takes place on the server by him, he should be CT banned for a while.
But as far as i see, this report will not get him CT-banned.
Thank you for your report,
Solved