Four to six missions into the new campaign for Blizzard's Heart of the Swarm expansion for StarCraft II, Kerrigan is again working with the Zerg. Blizzard won't say why, but it appears that Kerrigan, in her de-Zergified form, is fighting to reunite as many slimy, spiky creatures under her banner as possible. In this campaign she won't simply be a character that walks and talks, but a fully controllable, upgradeable hero unit useable in nearly all of Heart of the Swarm's 20 or so missions...