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 multiplayer map created by me (Rampastring).
Same concept as previously, but for 8 players. The thick swamp forests are only passable for infantry, which means that using infantry here gives you shorter attack routes and additional attack/flank paths.
At 180x180, it is the largest map I have ever created. I've usually had a preference for smaller maps that have intense gameplay. (It is still not the largest map in DTA, though; others have made even bigger maps.)
That's a monster! I like how you took the idea with infantry-only marshlands even further. Looks cool!