with the number of walls and equipment there, you're able to map the circle with a radius of half the facility with the center in the corner - I'll draw the map need few moments for this.
the guard can be anywhere - you had to wait 15 minutes to have him pass, and judging by the speed he is moving he walks back and fourth taking about 30 minutes to complete the circuit
you're also able to scan him for cyber and metal equipment - there is no cyber on him except the smartlink. he holds heavy pistol, and stun baton.
in the part that you have scanned
A tagged warehouse - 2 tagged guards - similiary equipped as the one you scanned and 2 tagged workers - light cyber (control rigs), this building contain some vehicles and storage pallets, containing both equipment, inventory and materials)
B tagged 'unknown' - 4 tagged guards, 12 tagged workers - light cyber on some (control rigs, data jacks, cerebral boosters) - this building contains lots of lockers
C tagged assembly line - 2 tagged guards, 10 tagged workers - light cyber on some (control rigs) - this buildign contain (in the part scanned a computer room, a large crane, several smaller vehicles and part of the assembly line
D tagged office - 2 tagged guards, 10 tagged workers - light cyber on some (control rig, datajacks, cerebral boosters, cyber ears)