marauders are not much of a problem for me because i play zerg. i've offraced as toss though and yes, marauders are really hard to face. early game i rely on a zealot-heavy army and trapping forcefields, then i chronoboost out immortals to face them. just want to ask, do you bother with making immortals when facing a marauder-heavy terran or do you just proceed straight to colossi?

From my experience when playing as Toss, Marauders are handlable in the early stages with forcefields and a zealot-heavy composition. In the late game when there are several colossi on the field and your zeals have charge, they are not that tough as well.

The problematic stage is the early stages of the midgame, where they have stim and are in a mass where it is hard for your slow zeals to get enough surface area on them. This is the part I have difficulties with, so I rely on immortals to bolster up my army against them. Only thing is when the opponent has good micro, he focus-fires them as you mentioned. And I don't seem to have any way to micro the immortals against this.