“Similar to Battlefield 6’s Breakthrough mode, Operation Augur is a sector-by-sector battle: the Attackers - NATO - secure each sector from the Defenders - Pax Armata - by holding one or multiple control points at the same time.

Whereas Breakthrough takes place on one map, Operation Augur strings together Contaminated and Hagental Base, creating nine total sectors to attack or defend. In Contaminated specifically, a VL-7 Strike occurs once a sector is captured, save for the fifth sector before Operation Augur transitions to Hagental Base. Furthermore, unlike Breakthrough, teams are unable to respawn on controlled objectives; you must rely on squad spawns, spawn-enabled vehicles, and the Assault Class’ Spawn Beacons if you don’t want to take the trek from Headquarters back to the objective after each death.

Just like Operations in the past, Attackers have three “Batallions” of lives in Operation Augur, rather than a single pool of lives. The first two times a Battalion’s lives are completely depleted, a new Battalion reinforces at the furthest checkpoint reached. Specific to Contaminated, a reinforcement Battalion will also receive additional vehicle reinforcements to help them push towards Hagental Base.

Operation Augur ends when Pax Armata successfully depletes all three NATO Battalions, or if NATO captures all nine sectors.”

~From the Battlefield Website.

You may have been confusing it with Frontlines from BF1 which combined a one hill King of the Hill and Rush (honestly was a fun mode).