Yeah. I wanna say he's definitely walling. He's always watching through walls, and "knowing" which way to go while looking through the walls.

These are the ticks.
20k - Has the ct in his crosshair through the wall. Other guy is hiding behind box, but to be fair his gun was sticking out. Knows when to shoot.
25.3k - Tracing guy up at sniper spot
26.5k - Knew he was at spawn. Then knew he went back
29k - Even with smoke, went straight to the guy
33k - Sees ct, throws nade then gets hs with AK, then gets a hs with deagle after.
38.5k - Knew guy was hiding behind the box behind the double doors.

Either way, I'd say walls. Always seems to know where they are.