head to head
War Thunder asks more than The Division 2, and the gap is reads.

Optimization · Practiced Mastery
A tactical cover shooter where build crafting and teamwork meet real PvP reads in contested Dark Zone spaces.

Execution · Grand Arena
Sim-leaning combined-arms vehicle PvP.
The Division 2 leans Optimization (Practiced Mastery); War Thunder leans Execution (Grand Arena).
War Thunder leans a little harder on execution, though the gap is small.
The Division 2
Cover shooting and positioning demand consistent aim under pressure
War Thunder
Aim, lead, and vehicle handling demanding
War Thunder leans clearly harder on reads.
The Division 2
Dark Zone and conflict PvP feature real adaptive opponents
War Thunder
Position-versus-position duels are reads
War Thunder leans a little harder on variance, though the gap is small.
The Division 2
Named item drops and talent rolls add meaningful RNG
War Thunder
Shell ballistics and matchmaking vary
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
The Division 2
Skill builds and gear set synergies are extensively theory-crafted
War Thunder
Vehicle lineups and module unlocks deep
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.