The Olmak would pretty much work like Teleportation secondary, except that the portal is visible to everyone and stays open for a few seconds after activation. This allows both friends and enemies to pass through. It also allows me the option of slaying anyone who uses it after it has closed too much.
what would an olmak do? something similar to a Rahkshi of Teleportation's poratl-leaving idea? also, those new weapons look awesome. the quake-breaker bazooka thingy looks like a base ball bat to me.
That's a Lightstone Rifle, by the way, not a Quake Breaker bazooka (though a gun that shoots chainsaws would admittedly be pretty cool).