Report the facts and only the facts. Speculation leads to an Open Mind. Note important OoI and PoI and whether or not such items or persons were acquired, destroyed, or removed.
Report on the important events of the mission. Record the mission number and code phrase, the kill team, and the members, record any status changes to said members, and any special distinctions that occurred. Record any oaths taken and kept, any weapons lost or destroyed or damaged and any specific contact that may have caused corruption, insanity, taint, or lose of morality to any team members.
The Emperor Protects!