sentences:  On one map of "Battlefield 4", it was possible for players to destroy a dam, causing the entire map to be flooded by water.On 13 November in San Jose, Andersson announced that future Frostbite games and an updated version of "Battlefield 4" would be powered by Mantle, a low-overhead rendering API co-developed by AMD and DICE.On 15 November, "Need for Speed Rivals" became the second game of its series to use the game engine and the first since the upgrade to Frostbite 3.