If there was a strategy no one on here will share it with you, or anyone on here.
Oh you have no idea, here we are our brothers keeper. I have gotten some strategies from here that worked with some of my games but maybe not always and I have also shared some ideas with other players that were helpful at some point. This is what we do here, maybe you should get that straight bro, although we all know that these things are all based on trial but then, its better to try than not to try at all.
Back to the Ops question, I really do not have any idea of such strategy but then setting limit is one magic that helps in winning most times, although you might not win always but loses will be averted and the game can be controlled.