Two co-op modes have been reportedly cut, including a tower-defense mode that "never worked." Players would be placed into an arcade machine, where they would fight against waves of enemy toys. The second co-op mode was internally called "Spec-Ops," as it was similar to the co-op modes from the most recent Modern Warfare games. As in Call of Duty, players would work together in missions inspired by the single player campaign.
According to Kotaku, both modes were axed, and it's unclear if any multiplayer modes remain.
Speaking to the site, Irrational's Ken Levine assured fans that, despite the setbacks, the game is still "on track" to meet its already-delayed February release. Pointing out that staff members leaving is something to be expected in the industry, Levine noted that much of the core team is still intact. "As far as the team itself, the lead artist, the art director, the creative director, the lead effects artist, the senior sound guy, the lead programer and the lead AI programmer from BioShock 1 are all on BioShock Infinite. I don't think there's a single senior BioShock team member that isn't here, which I think is amazing and a testament to their commitment to the studio."