head to head
Battlefield 4 asks more than Worms Rumble, and the gap is optimization.

Execution · Competitive PvP
Combined-arms multiplayer shooter famous for map-altering levolution moments and 64-player conquest.

Execution · Competitive PvP
Real-time arena aim duels against human worms with randomised weapon pickups.
Battlefield 4 leans Execution (Competitive PvP); Worms Rumble leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield 4
Gunplay, vehicle mastery, and movement under fire
Worms Rumble
Real-time aim and movement decide brawls, unlike turn-based Worms
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield 4
Human teams adapt to flanks and levolution chokes
Worms Rumble
Human opponents in arena and royale modes can be predicted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield 4
Map-altering events and spawns inject noise
Worms Rumble
Weapon crate spawns and drop positions add randomness
Battlefield 4 leans clearly harder on optimization.
Battlefield 4
Loadout tuning and objective rotation knowledge
Worms Rumble
Loadout knowledge and map control matter but stay shallow
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.