Why so few credits for Silvers members?

Well, first I’m not English, so sorry for my bad English,

I can not buy Gold, and then I can only play locally, but I see that being General Grade 4 only gained 231 credits maximum, and the question is, why?

Because -Yoink!- wants to have your money, and because -Yoink!- doesn’t want people boosting through the ranks offline.

If you need money I would suggest looking at the, “25k every 5 min” or something thread.

I feel you buddy. The thing is its way too easy to rank up offline. As a silver member you only have access to campaign forge and custom firefight these are very low paying gametypes anyway, and I take it you once used your account online as if you hadnt those gametypes would have given you large amounts of credits.
The reasoning behind it is purely to stop people ranking up fast offline then coming online.

As for your English its fine dont worry.