Elite Armor, Luftwaffe GF, and Spec Ops are all pretty underwhelming due to not really offering much the OKW player doesn't already have. Scavenge, Fort, and Jadg give the player more options at least and can fill holes OKW has it it's unit list.
For instance the StG 44 IF has lower DPS than the MG34 LMG, Fallsch are very squishy and very expensive, and the command panther is just to expensive when you might as well get a KT.
Stg44: Double the DPS at close mid range, same DPS till 20-25m. At range they still have more DPS than LMG grens. They don't drop. And they partially ignore cover modifiers. Yep, "useless".
Falls: PG on steroids which come from ambient building. When you can't get Obers, they are your best bet as elite infantry. PD: they get a working snare if we compare it to PF.
Command Panther: gets better if we add players into the equation. Being a call in makes it cheap tech wise. You are basically paying 25f + 70mp for all the buffs the Co PV gives (extra sight range, mobility and with veterancy accuracy, range and later infantry is affected as well)
Also Luft and Spec ops are the vanilla commanders, and are the first options to get Infiltration nades and MG34s.