Getting past TrueAchievements on a game that has had its servers go down

Hello. I was wondering if it was possible to mod a game’s achievements that has had its servers taken down to where it looks like I did it before it went down. I was thinking i would pop the achievements in order offline before the one that required online and then time stamp the one that needed to be online to where it looks like i did it in the past.

But i know TA is sharper on this stuff than Microsoft at this point. So i wonder if they will be able to see when I did the offline achievements some how. Or if they have some system that can tell the achievement should have been scanned a year ago (this isn’t a new account i have been on the site for awhile). I’d prefer not to get banned on TA, so if anyone has sort of went to the past and popped some achievements and got past TA, let me know how you did it.