Along with other modules, the GAZ-3937 Vodnik can be fitted with AA complex, called Phoenix ADS ("ЗРК Феникс" in Russian).
— Battlelog description
The Vodnik AA is a light anti-aircraft vehicle that appears in the Battlefield 3 expansion, End Game. It is armed with a remote-controlled missile launcher that can both lock on and dumb fire. The vehicle is the RGF counterpart to the USMC's HMMWV ASRAD.
When a player occupies the gunner seat, the Vodnik AA's weapons system takes a few seconds to come online, though allowing the targeting system to lock onto air vehicles. The anti-armor rockets deal significant damage to ground vehicles, and are accurate enough to engage distant infantry.
The Vodnik AA shares vulnerabilities with its unmodified cousin. Damage can force open the rear hatch, exposing the occupants to gunfire. The front windows are also not bulletproof (unlike the HMMWV). The small side ports and undercarriage can allow blasts to penetrate into the vehicle. It does retain its amphibious ability, however.