This will get very interesting if things actually happen quickly enough to make any difference.
What I'm expecting to see happen, if there is to be any chance of success, is:
Various Special Forces are already in there performing training, co-ordination and recon roles. Our SAS will have been in there for weeks. Some of them were the guys that went in on Hercules a while back to get those oil workers out.
US carrier-based aircraft take out air defences - and **** soon. Special Forces act as FAC, where necessary, but the static targets will already be planned for a hit.
Various nations hit mobile targets, bridges and other strategic targets from the air as the Loyalists advance on Benghazi. Again, Special Forces as FAC. Hopefully some of those will be Arab League pilots but I'm sure some will be French and British. The Arab pilots won't have ever done it before but they will be well trained.
The French send in the Foreign Legion to do any dirty on the ground shit - they don't ever send their own troops in if they can avoid it. If anyone is coming back in a bag they don't want it being one of their own.
Yanks send in Apaches to annihilate the retreating forces and do some blue on blue.
Ghadaffi does a runner on a plane and gets shot down by an F-16.
Britain is seen as the saviour of Libya and we get oil concessions and the price of petrol comes down. Total result all round.