mic audio in the gaming pc dosent get recognized on the streaming pc using ripsaw hd

Hi, i bought a ripsaw hd and i managed to make the video settings work on my streaming laptop. My problems are on the audio part... currently im using a Sennheiser GSP350 as headset which has an integrated mic and a a USB port output. This means i cant connect it to the ripsaw's mic and headset jack input. I want to capture my headset's mic audio from my gaming pc, where i can only connect it, and i need to hear the ingame audio too together with discord to talk with my friends while streaming... but sadly it captures everything except my mic. can u help me out with this setup, thanks.