Dawn of the Tiberium Age (DTA) is a stand-alone mod that combines Tiberian Dawn (C&C 95) and Red Alert. While classic mode gets as close to the original game-play and balance as possible, Enhanced mode provides improved game balance and a lot of fun new stuff. DTA features many customization options for Skirmish and multiplayer (where you can play as GDI, Nod, Allies and Soviet on over 200 maps), challenging original singleplayer missions, as well as co-op missions. Since this is a stand-alone mod, you don't require anything but the mod itself to be able to play: the original game is not required.
A new 2-player map by me (Tiberius) featuring some access to ships, without taking away the importance of land forces. To be included in a future update.
While I think the lack of resources may make for a slow game, I like the pathways through the forests in the corners. I expect people might try to flank through those.
Edit: Just noticed the blue tiberium on the other side of the rivers, that should help speed things up.
I believe there are a couple scrap piles in the villages as well.