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

Execution · Competitive PvP
Milsim 50v50 team-tactical shooter.

Execution · Competitive PvP
Tactical gunfights testing aim, entry planning and prediction of human opponents online.
Squad leans Execution (Competitive PvP); Tom Clancy's Rainbow Six: Vegas leans Execution (Competitive PvP).
Squad leans a little harder on execution, though the gap is small.
Squad
Bullet drop, sway, suppression test aim
Tom Clancy's Rainbow Six: Vegas
Aim and snap-to-cover gunplay punish slow hands
Squad leans clearly harder on reads.
Squad
Squad tactics versus humans demand prediction
Tom Clancy's Rainbow Six: Vegas
Multiplayer angles and pushes demand reading human opponents
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Squad
Minimal RNG, comm-driven outcomes
Tom Clancy's Rainbow Six: Vegas
Terrorist hunt spawns vary modestly between runs
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Squad
Logistics, FOB placement, kit choice deep
Tom Clancy's Rainbow Six: Vegas
Room-entry planning and map knowledge are studyable
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.