I got a bit carried away and was curious if I could possibly reach 1,000,000 credits in a C&C Red Alert skirmish...
After reaching my base across the map with silos and power plants twice across and once vertically, I found my structure list blocked out. I didn't count how many structures I had but I did manage to get 650,000 credits, however ... So yeah, it must have been several hundred. (In the attached screen shot, you can see on the radar how expansive my base becomes.) I tried to sell off my helipads to see if I could trade them for more silos but I still couldn't build more.
Not that any of this matters. But I just thought that some of you might find that interesting.
O_o