I find the german S minefield too expensive and time consuming for competitive matches. It would be nice if we could have cheaper and very specific Anti infantry mines to lay (maybe just 1/4 of the S minefield) for say 20-30 munitions.
This would allow the germans to have something that would damage the scout cars (but not necessarily disable) early game, and also damage flanking infantry. This rewards smart play and covering flanks with mines and baiting. Later on, the teller becomes useful, you should likely have a higher muni income and can allocate munitions for preparing for tanks.
Right now, the way the mines are... in the early game russian players can pretty much just drive all over the place whenever without any fear of repercussion. I don't find that very interesting gameplay. I guess I missing baiting jeeps and bikes in VCOH
IMO russian mines are fine and surprisingly underused from what i've seen (considering russians generally float munitions depending on strat)