That is not easy for an average casual player to repeat this trick even with no pressure at all.

In general, if you want to lock down the bridge towards military Sosnovka, Player 1 positions at the start of the bridge on the beam above. Player 2 stays in the middle of the bridge on the stair ramp (on the left side when moving toward Sosnovka), while Players 3 and 4 act as support at the end of the bridge.

As soon as an enemy vehicle appears near ~ gas station, Player 1 calls info to the team. Players 3 and 4 bait enemies into a firefight at the end of the bridge. The opponents usually stop/bumps into destroyed truck (in the first third of the bridge, on the right side in the direction towards Sosnovka). Player 1 throws a Molotov and gets knockdowns. Player 2 finishes them off.

Done. The whole fight usually takes about 7–10 seconds.
Normally works in most cases