Steve, this game has victory points which are literally pointless as it simply comes down to last man standing and if an opponent isn't wiped out completely it a draw. Any chance this game's victory points are actually used so the side with the most, wins, otherwise what it the point in having them.
I'm certainly open to altering the mission. I think the only drawback with your suggestion is that if one side kills a single unit, it's then in their interested to run and hide for the rest of the game.
I could change the VPs so not all the units of one side need to be killed to win?
Yes they could but hard to hide 15 men without being found compared to just the one, which is like a needle in a haystack. This happens pretty much every game.
It is similar to Oddworld with VPs. You could kill a single unit and then try and hide your 8 men but nobody does that as you can't realistically do so with that many. Only when you have a substantial lead in VPs and units whittled right down does anyone try, then that is of course fair enough your winning. Not the player with fewer victory points simply hiding to get a draw, that shouldn't be allowed in any game, a kind of anti-victory.