Player 1 OW can fire at anyone he can spot, doesn't matter if they fired or not but units that fired will be easier to spot
Player 2 can do the same at anyone he can spot (fired or not)
I say it alternates Player 1 OW fires the units he selects
Player 2 then OW fires his units
Player 1 can elect to OW fire different units
and so it goes
So I would say the Spot/Fire turns on after that round of OW fire
Thanks! I thought that was the the case but just wanted to check I had it right.