Use checkpoint route to solve one real in-game task.
When airport clears get messy, work one checkpoint lane: scan passengers, search bags, verify documents, then hold defense before upgrading the tool that failed. Watch the same lane again so the broken step is obvious.
- Scan until the next danger is handled.
- Search until the next danger is handled.
- Clear until the next danger is handled.
- Defend until the next danger is handled.