Allow easier transition from primary to secondary.

Basically in Breachers, you could be holding your main weapon and then let go with your dominant hand and grab your pistol while holding the foregrip of your primary with your offhand, being able to shoot your pistol one-handed. You can't do that in forefront and it's really annoying that I have to entirely let go of my main weapon to then grab my pistol. It would just be a nice QoL update to allow easier transitions from primary to secondary to get those final shots on people if you run out of bullets.