I don't find it particularly viable. At no point are its abilities particularly useful.
The reason the doctrine fails is because it's mutually exclusive to itself and to the Ostheer faction. I can buy G43 OR I can buy LMG. I can plant expensive mines OR I can save for arty. Etc.
Suggestions to fix:
- G43 become a researchable global upgrade at the HQ for all grenadier squads that costs MP / fuel (like BARs) once unlocked.
- Tactical Movement moved to a per squad ability basis and made substantially cheaper, ie 5-10 muni.
- Replace one of the abilities (arty / stuka) with some sort of callin. Basically something that isn't munitions based. Could be stormtroopers as that would fit nicely with the whole infantry thing, but whatever.
I agree with this. I really want to like this doctrine as it gives grens another option for dealing with snipers. Vetted grens with G43s will kill snipers in a matter of seconds if caught out of cover. The munition cost on all of these abilities is a huge issue as well. If the muni cost was toned down on the G43s and the sprint was substantially cheaper and used on a single squad I think it has the opportunity to be a really satisfying doctrine choice.