Wouldn't a [u]very[/u] unconventional warfare unit be very useful in combat. As in a band of classified, highly armed, slightly illegal soldiers. I know that the country employing this unit would get blasted later for war crimes, but it could be worth the tribunals to win the war.
More detail:
Networked on secure radio and obscure frequencies
Supported by conventional and spec ops troops.
Armed with all kinds of small arms, improvised weapon knowledge, some heavier equipment, and an advanced networked
Integrated into population like CIA and MI6 agents.
No holds barred, no Rules of Combat, with limits.
Use of fear and intimidation tactics (mimic local superstitions, or plan unpredictable raids, etc.)
I might get a lot of hate for this, but it is just an idea.
Is it worth the war crimes if it is helpful enough?