Handling logistics, meetings, and staying on track
An approach that works well in my career when it comes to project and operational planning is that it's best to keep it lightweight and focus on the people, rather than implementing a detailed task tracking system. Tracking the high-level deliverables via a simple tracking solution that allows you to highlight the start and end dates of tasks should probably suffice.
The detailed tracking and progress of a project can be tracked within the attack plan (maybe in encrypted OneNote files), which goes beyond the project management aspects and already merges a lot of the logistical with the technical details. This is the place where the team tracks details of tasks, draft findings, the results of scans, and so forth. Such a shared document allows the team and authorized individuals to get insights into day-to-day detailed progress and work. It's a complete logbook in many ways.
When it comes to planning, the best approach...