I would guess a change to the Brace mechanic is required - make it reduce damage only from indirect fire. Once this is made, I see no problem with the Brit player shutting down the functionality of the (very high upkeep) unit in exchange for surviving ISG / mortar bombardment. Once functionality is disabled, ground forces can move in and clean it up. That to me is tactics.
I think this wouldn't work because it leaves emplacements extremely vulnerable to ground alpha strikes. A couple of focused shreks would be enough to instantly remove a 400mp investment with minimal losses. There'd be minimal counter-play involved there as well.
It seems to me like the main problem here is brace functions too much like a hard-counter. If it's not active, your investment disappears too fast. If it's active, nothing can scratch it. If both the structure health and the dmg reduction bonus of brace are normalized, I think we can end up with a much better situation for everyone. The Brace bonus should be reduced, the base health (and armor?) increased so a concentrated attack that isn't repelled can take out the emplacement in a reasonable amount of time while also allowing ample amount of time to counter prolonged indirect fire from a single source.
In short, I think emplacements should function more like OKW structures. They're durable enough to sustain prolonged indirect fire but not enough to be careless about leaving them undefended for too long.

RtN. Havoc
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PanzerGrenadierAngreifen
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