There is nothing wrong with Riegel mines if you skip the fact that it's doctrinal. It's easier to plant them (faster I belive and truck is way more mobile) and they are cheaper. Perfect to protect Elephant from flanks.
People dont use them cause they come only with 2 doctrines. And even then, people just forget about mines (like you said).... until they lose. When Im picking up Jaeger armor, there will always be mines at flanks.
Mines are very expensive for OST and OKW in early-game. Very risky investment BUT well planted mines can save you from T70 or AA Truck. Plant it on obvious path, narrow passages and bait your enemy go get there.
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Relic Entertainment
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