Scenario and Campaign testing, well, mostly scenario testing heh.
When you test a scenario or scenarios in a campaign, you should have pre-set template of report questions to fill out so you cover all the aspects of the scenario.
Briefing is it properly written, ie helpful?
Briefing tactical map images included and ok?
Designers notes, are they ok?
Is the scenario laggy?
Are there enough infantry for boots on the ground type stuff?
Are there enough armored vehicles?
Are there enough transport vehicles?
Are there right amount, too few or too many units?
Do your troops selection make sense (not like only infantry HQ's but grunt squads themselves missing)?
Are blue/red force levels ok?
Is the terrain nice / suitable?
Is AI plans working ok (no repeating single objective approaches etc)?
Are victory conditions working?
Does the scenario end?
Is the scenario "cool"?
Was the scenario difficult?
Time to complete (turns/minutes)?