The first step is to buy operating system cyberware – “Biodyne Berserk Mk. 1”. Note: This enables berserk / superhero landing when you hold L1 + R1 / LB + RB.
Find a group of low level enemies standing close together. Next, activate berserk (Hold L1 + R1 / LB + RB) and jump on them. Note: Must kill 2 in 1 jump.