Soldiers with flamethrowers and tanks are cleaning up a zombie-infested city. A male agent/special forces guy (?) who infiltrated the city earlier, sacrifices himself to save a young woman and gets her through a barricade on a bridge (?)

Movies
1

What I’ve described is the ending of the flick. I only have the ending.

Release date: Approximately 2014 - 2018.

It’s not an episode of a series.

It’s also not:

28 Weeks Later (2007).

A Resident Evil movie.

Children of Men (2006)

Doomsday (2008).

Gamgi (2013).

Overlord (2018).

The Crazies (2010).

The Mist (2007).

Maybe it was set in the USSR or Russia.

The soldiers were killing even the uninfected in some cases.

2

No aliens but ending sounds similar

Aliens but ending is different

3

It’s not this is it?