I'm not suggesting the purchase of mats with credits per se, but some of the engineering options I think should just be attachments for guns that are purchasable with credits. Gun version of optional internals, and then maybe just allow engineering of those, like variable zoom as an engineering option for scopes, or have a damage debuff on suppressors by default that can be engineered away, etc. I agree that people sitting on billions of credits shouldn't necessarily be able to buy their way to god-tier, but I do think that the game should either get rid of compartmentalized grinds either by allowing the gathering of mats for all avenues regardless of gameplay method, allowing cross-trading of mats for on foot and in ship items, or rebalance the materials required with the idea of gameplay being more spread out in mind. You put out Odyssey, so rebalance mats required across the board with the idea of people playing all of your content in mind because as it stands now if you want to continue to engineer your ship you are pretty much signing up to ignore Odyssey content entirely to do so, or committing in the opposite direction and choosing to pretend that ship gameplay doesn't exist until you grind to a point that on-foot gameplay isn't a bullet-sponge littered trail to the next recharge station before you suffocate from depleted suit energy.I'm firmly against the use of credits to buy engineering mats, regardless of whether that be for on foot or ship.
It makes sense to me that engineering rewards have to come from game play. If you want to make all that credit based, then they have to rebalance the entire game to make credits near impossible to make .. again. Which wasn't any fun the first time a round.
Now, the fact that some of the 'game loops' associated with engineering blow chunks isn't something I'm going to argue with. That though isn't an EDO vs EDH thing. It's a common denominator. that deserves it's own thread.