With tons of firepower
Either by torpedos or by missiles; if the sub is surfacing a Tomahawk or Harpoon might do the trick though the radar capabilities and early warning system on these subs might track the launch before you can get off the donkeys ass. Their escorts will come on to you as a piece of red meat in front of rats, so a couple of torpedos and full speed out of the scene might do the trick.
Or ram it... Straight on...