The flak track is a Soviet anti-air vehicle and infantry transport in Command & Conquer: Red Alert 2 and Yuri's Revenge.

Background
Flak tracks' main purpose was the first line of air defense, with the flak cannon mounted on them. Excellent against aircraft, these cannons were also effective against lighter vehicles and infantry, but were poor choices against stronger tanks and buildings. Their secondary purpose was to transport infantry to the front line. Each flak track could carry up to 5 infantrymen.
In the new timeline created by Cherdenko, the flak track was replaced (along with the Sea Scorpion) by the amphibious Bullfrog.

In Game
This light Soviet vehicle is designed to defend against both air- and light ground-assaults. It attacks by expelling flak, much like the Flak trooper, which effective against lighter vehicles and infantry, but are poor choices against stronger tanks and buildings. Unlike the Allied IFV, flak tracks can squish enemy infantry. For example, they can run over enemy attack dogs before unloading engineers to ensure the capture of a key structure (this is popularly called the engi rush). The same tactic is used for Crazy Ivans and Cuban terrorists. Another one is used also for the Allied spies from Allied Barracks built/captured with Allied battle lab to create chaos for spies to sneak in.