Ace of Spades is receiving some free DLC today, with four new maps, a Capture the Flag game mode, and a new weapon. The new maps, like the standard ones, are well designed and are unique in their own ways. Map design, however, is the least of this game's worries.
The new weapon is the Snow Blower, which shoots snowballs that create blocks upon impact. While a decent item, it takes up the explosive slot and it's hardly better than a grenade, turret, or C4. Capture the Flag, on the other hand, is pretty great. In my first match, my team managed to burrow across the map, resurface under the flag, and bring it all the way back for the point. Then I lagged through some terrain and died to someone unknown.
At least the DLC is free!