Left 4 Dead

Both lean on execution about the same (7 vs 7). Biggest difference: reads (2 vs 1) - Bosses are scripted movesets despite feeling adversarial.

Both lean on execution about the same (7 vs 7). Biggest difference: variance (5 vs 3) - Random lobbies, spawns, and zombie waves

Both lean on execution about the same (7 vs 7). Biggest difference: reads (2 vs 3) - Crucible PvP adds genuine human prediction.

Both lean on optimization about the same (5 vs 5). Biggest difference: variance (5 vs 3) - Wildlife encounters and patrol spawns are random

Both lean on variance about the same (5 vs 5). Biggest difference: execution (7 vs 5) - Ballistic gunplay punishes sloppy aim

Both lean on variance about the same (5 vs 5). Biggest difference: execution (7 vs 8) - Bullet-hell dodge-rolling and precise aim define survival.

Both lean on reads about the same (2 vs 2). Biggest difference: optimization (5 vs 7) - Loadout and stratagem synergies deep

Both lean on variance about the same (5 vs 5). Biggest difference: execution (7 vs 6) - Accurate shooting and mobility across 3D cave terrain is demanding

Both lean on execution about the same (7 vs 7). Biggest difference: variance (5 vs 3) - Wind direction and enemy patrol timing add first-run uncertainty

Both lean on reads about the same (2 vs 2). Biggest difference: variance (5 vs 7) - Room layouts, parasites, items roguelike

Both lean on optimization about the same (5 vs 5). Biggest difference: execution (7 vs 5) - Visceral melee blocking and counter timing

Both lean on execution about the same (7 vs 7). Biggest difference: optimization (5 vs 7) - Perks, weapon synergies, money management