Just to put this to bed...
Thank you to everyone for your suggestions. Thanks to Trailrunner for a copy of the ASL rules - but honestly ASL rules seemed very "texty" and long. Besides as I mentioned, I've got quite a few squad/platoon level games.
In the end, as you may know, I managed to get a game of Warfighter in. I enjoyed it and will go back to it. I even bought some miniatures to use as the soldiers (the ones that came with the kickstarter were poor).
I have since managed to get a hold of LnL Solo and a copy of LnL Day of Heroes and so I've put my eggs into the LnL basket. I've just played a few turns of a scenario from Heroes of the Falklands and I'll be playing some more to try and get the rules down pat.
So LnL will be my focus for the immediate future.
Thanks again. Combat! will have to wait.