This first-person shooter, available now for the PlayStation 3, Xbox One, and Windows PC, might be forgivable if you got stuck right at the beginning.
Simply double-tap R1 on the PlayStation (or RB on the Xbox) to activate the scanner in Atomic Heart, and after the second press, maintain holding R1 / RB.
The stated instructions ("Hold R1 + R1" on PlayStation) sound like the kind of tip that instructs you to hit two distinct buttons together with the NPC.
No one would blame you for presuming the text command is incorrect or for repeatedly attempting to hold down L1 and R1 at the same time in Atomic Heart given its general buggy nature.
The scanner in Atomic Heart functions much like the scanners in most games: it aids with environment analysis.
Chests, drawers, and other storage areas shown in blue hold lootable items.
Orange denotes adversaries. You can see a list of an enemy's defences and vulnerabilities as well as a breakdown of the loot they'll drop if you hold the scanner over them.
White denotes objects that you can interact with, such as call buttons for elevators and save stations.
Important plot points are highlighted in purple. Atomic Heart is generally quite liberal with its waypointing, but occasionally you have to do the job yourself.