Viper 4-1

Viper 4-1 is a Little Bird in the Down the Rabbit Hole]] it's like Viper 6-1 When the Sandman open a door it fire some rockets to Russian soldiers, and after Delta soldiers come out of the chopper it support them and it help to Sandman and Price to they get the President but after UAV destroyed Viper 4-1 hit by a RPG.