So, picked up the game and using my old FoW tanks I find I have a decent number of British Grants now... 6 Grants @ 14/each and filler... A Sherman V perhaps or a Honey and a few odd points in something? Anyone have experience running a swarm like this?

Russians are a very effective swarm, as they're designed for that.
Don't own much from the British so it's hard to say for me how a swarm would do.

Most tanks you can field in a 100 pt list in the game is currently nine Panzer IIIs at 11 pts each with one point left over for what you will (Maybe a cunning commander? Seems a bit pointless though. Knowing myself I'd probably just throw a bottle of booze in with one of them and wish them luck)

I played a brit force a few weeks ago using a comet, cromwell and firefly.

Im a little hazy on upgrades and specifics as it wa s a while ago and beer was involved, but I do remember the comet and cromwell absolutley destroyed the german side.

I basically charged in ( and kept moving at 3 moves) and they battered a Tiger 1 and Panther with little reprive.

The firefly managed to one shot a pakwagen but fell victim to the Tiger taking sniper shots.

Either way, I belive that Brit forces definatley need fast movers, fireflys are fire support and sherman 5s are point fillers.

I may try a tricked out achillies next time over the firefly, just to see what happens.

I like running Panzer swarms. Panzer III's and IV's, flooding the field is a glorious sight.

I think I fielded something like 6 Panzers... 4 Panzer IV's and 2 Panzer III's. The Russian player, my 15 year old son, had a hard time dealing with it.