Thing is Bofors is usually going to get taken out by indirect fire or by tanks. 2X LeIGs usually hardcounter it well (assuming no standfast which is more cancerous than advanced emplacement upgrade). As Ostheer, currently you'll need to split up mortar teams to avoid driven off completely by the suppressive fire, but if it's removed, then there is absolutely no counterplay by the UKF. Perhaps we should also consider the relatively cheap cost of the Bofors.
Also please keep in mind one very underused trick of Ost mortars: smoke. If the Bofors is unsupported, smoke, send in flame pios on flanks or flame HT and Bofors goes down fast. If supported the Bofors could attack ground through the smoke if other units sight for it, but that requires micro.
The thing with emplacements is that everyone expects one single unit to effortlessly hardcounter them. Sure mortar HT comes close with flame shell, but it usually takes some coordination to take them out. Once outplayed, the UKF investment is now 0 so there's a number of things to keep in mind. Remember non-doctrinal UKF indirect fire is non-existent outside of the Bofors and mortar pit.
