It is more difficult to get a single salt compared with collecting 30k oil now.
after 1 hour raid, I collected 30K oil but can't find a single German base.
Most offensive Coalition required salt, and German is the least encountered nation.
And, even you found a German base, you may find it is full of bless, garrisoned with 3 Howie,
And, even you manage to get a victory, it could be 3 star with no salt dropped