Way to set first person controller velocity?

So I'm very new to unity and I'm putting a feature in my game where you hit a bounce pad and it sends you up in the air in at the same speed you hit it with and you continue in the same direction (simulating a call of duty 4 bounce). What I was planning on doing was multiplying the downward velocity be negative 1.2 but without a rigidbody there seems to be no velocity variable (I'm using the standard first person controller). Any help is appreciated thanks c: