Nihlus will go the parkour route for breaking in because he's not in the mood to deal with any security guards and he has a grappling hook hand and also he's kind of extra. Once in, either through the window or some roof access of another, he will be keeping his hologram disguise up for the security cams, a rando donning the security guard uniform (although for the most part, he will be dodging the cams as they pop up on his omni-tool).

After reaching the proper room and identifying that this is the right box, Nihlus will scan it with his omni-tool and detect the locker. Assuming there is no timely manner of bypassing the security measure with the box closed, he will omni-gel open it and see if he can access log there and if he can edit it.

Whether this goes through or not, he will definitely try to investigate the backup. Will the backup already be unlocked for the investigation or will he need to find the access code some other way?