I open helions into expo, starsport for medivc (helion drop) and vikings if the dude goes banshee
than I transit to mass marine / tank
(no viking, not necessary) if the dude goes marine tank too, or I go some marine and marauder heavy vs mech, with some vikings
I love bio vs mech, if u get air control with some vikings, ull be
free to drop everywhere and expand every where. Demands a good scoutin, if u see the guy moving out attack him before he gets to ur base.
If u get tanks unsieged ull win the battle, but if he sieges right in front of ur natural ur fucked, so dont let it happend. Late game, usually after i get 4th or 5th base I transit to BC/raven/viking
e/ If u want to try this build lmk, I can explain to u with more details. Im master terran and it works very fine for me. It holds every early reapper / banshee builds. Also its good vs marine openers. Its better mainly vs banshee or reaper builds, since the helions will own the reapers and than will be able to harass, and the vikings will kill the banshee, and the helions will harass.
I only make about 4 for vision purposes in a tank vs tank engagement. Plus to pick off some medivacs