Navigation :
0:22 - Hitscan demonstration
2:00 - Leading miss
2:45 - ZT Hitscan aiming miss
3:51 - ZT Leading aiming hit
4:17 - 1s delay SC decap
My video attempt at showing the difference between hitscan and projectile hit detection. This is why it is very easy to play as a COM in high ping servers.
During ZT however the aiming now becomes projectile instead of hitscan. However let it be noted that your ping does go down by around 25% during ZT so the leading should feel like it should as though you're playing in a lower ping server.
I was pinging 1000 while Sima was pinging 500.