Vpn and Metasploit

ok, so I finally purchased a vpn with torguard.com and set it up on my kali linux. Eveything works great!!! By the way (student2014) give you 30% off for a quarterly vpn I paid $12.99 and the original price was $20.00 plus I have a month free of 200 + proxies....anyways back to my question how do I setup metasploit to work with my vpn and port forwarding??? any suggestions??