"In terms of segments, I think we've done 1,200"

Robert Stack's quote suggests that the team has completed 1,200 sectors of a task. This might imply that the team has completed 1,200 private tasks, or that they have actually completed 1,200 parts of a bigger job. It might also suggest that the team has actually completed 1,200 sections of a larger job, such as a site or a book. It is likely that Robert Stack is referring to a job that the group has actually been working on, and that the 1,200 segments are a step of progress. The quote suggests that the team has made substantial development on the project, and that they are close to completing it. It is possible that Robert Stack is referring to a project that is nearing completion, and that the 1,200 sections are a measure of how close the group is to completing it.