Make Pioneers more squishy (armor, since apparently, the coh2 design philosophy is keep all HP levels standard), problem fixed.
The flamethrower SHOULD be a deadly weapon. Its costing you 60 muns, it better damn do what's advertising, you also always run the risk of going kaboom. Make them squishy, and you'll have to flank carefully or risk being focused.
Yeah this exactly it. You no longer have to be careful with flamers because they have so much health. You dont have to find the best shot blocking route and get them in nice and close at the point you expose them to fire. You can march right down the center and it does the job.
I don't know how much armour plays a factor, if its literally reduces the damage done by the mulitple, but would be great to test it with Pioneers and Engineers at 0.85 armour.