The Easter Cliffhanger - Keep Out Herroberst Please till SK finished

[fluidwill]

Here's a fun little situation thats developed in one of my games with HO;

It's late in the game (35 of 40+) and one of my snipers thats been left behind in the rush is sneaking up on a forgotten flag because you never know right?
Turns out as well as at least a mortar (probably shot out) garrison there's also a captured MG team.

So in homage to big Bank Holiday Films and in the true spirit of Steve McQueen I'm going to try and sneak the sniper in and rescue the prisoners!
From you lot I'm looking for hints tips schemes thoughts cheers boos etc. Can it even be done? Is a sniper enough to free a captive? What else is hiding in the woods?
HO and I are zipping through the turns right now so it should all be over pretty quickly but we are "live" so I dont know how its going to turn out and you can and will influence the action.
Just for fun, no prizes :)