this can work well if the american actually does build cars. if they dont, youre now a squad down against rifle spam, which already has an advantage over volks and sturms. thats the problem i see with okw early game. countering vehicles is a complete gamble. but if you wait til you see the m3/wc51 it may already be too late due to map control and/or squad wipes on retreat.
If he flanks your raketen and kills it on retreat and he steals it, that's basically also the worst possible thing that could happen.
I think a double sturmpio opening is the safest and most effective counter to the dodge right now. Also a mine on your retreat path. If he gets greedy and chases, then kaboom.