S.W.I.N.E. (Strategic Warfare In a Nifty Environment) is a real-time tactics game designed by StormRegion. The player chooses to fight as either the brutal invading pigs or the campy rabbits, and plays a series of missions. There are many units, including mortar, artillery, and tank units. There are also 10 multiplayer campaigns, each with many modes of play, including capture the flag and deathmatch. In 2005, S.W.I.N.E. was made available to download for free by its developer, Stormregion.
Not to be confused with the student group in Al Capp's "Lil Abner": S.W.I.N.E. or Students Wildly Indignant about Nearly Everything.
ps: It's a totally Free 2 Play game