Frenzy

Frenzy is a weapon for any Chinese vehicle to be much powerful for a limit of time. Level one has +10% for vehicles for at least ten seconds with tanks, such as a Battlemaster and Gattling Tank (five + five each) for example. Level two has +20% for vehicles for at least twenty seconds with artillery, like the Nuke Cannon and Inferno Cannon (ten + ten each) for example. Level three has +30% for vehicles for at least thirty seconds with transports, like the Listening Outpost and Troop Crawler (ten + twenty each) for example. When the storm rises, a crowd of Chinese soldiers cheer for support against GLA or American forces.

Behind the Scenes
The Frenzy looks like the Iron Curtain's abilty which is used on Soviet tanks against Allied forces (later Yuri). This was used in both Operations: Red Revolution and Polar Storm.