head to head
Tom Clancy's Rainbow Six: Vegas 2 asks more than Sniper Elite 4, and the gap is reads.

Execution · Practiced Mastery
Balancing ballistics execution with patrol timing to eliminate targets without triggering coordinated alerts.

Execution · Practiced Mastery
A cover-shooter Rainbow Six blending tactical room-clearing with solid gunplay.
Sniper Elite 4 leans Execution (Practiced Mastery); Tom Clancy's Rainbow Six: Vegas 2 leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Sniper Elite 4
Long-range ballistics, bullet drop, and wind compensation are the core demand
Tom Clancy's Rainbow Six: Vegas 2
Cover-based gunfights still punish poor aim
Tom Clancy's Rainbow Six: Vegas 2 leans clearly harder on reads.
Sniper Elite 4
Axis soldiers follow scripted patrol cycles without modelling the player
Tom Clancy's Rainbow Six: Vegas 2
Multiplayer brings some human adaptation; AI is scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Sniper Elite 4
Wind direction and enemy patrol timing add first-run uncertainty
Tom Clancy's Rainbow Six: Vegas 2
Enemy placements partially unknown per encounter
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Sniper Elite 4
Synchronised shot timing and route planning reward methodical preparation
Tom Clancy's Rainbow Six: Vegas 2
Room-clearing order and squad commands are solvable tactics
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.