Now if you do get a nice and balanced map (i.e. Langreskaya), your only option is to play defense. This means keep your Grens and MGs together at all times.
You mean, your only option is to play reasonably well instead of raging across the map, gibbing riflemen left and right, while floating 1000+ MP and teching?
Yeah.
What's next, actual consequences to your tech choice and timing? Don't be silly.