What you must do for Easy mode: Deflation, is to have 2 4-0-2 tack shooters and at least 1 thing that can pop purple and/or camo lead, or cause them to be able to pop camo lead, like Etienne (recomended) Place the Tack shooters where bloons will stay with them the most, like a looping area or smth. Place the purple popper somewhere between the two tack shooters by the path so purples won't be a problem.
Here's another example:

And another,

and another.