Interesting to note the conversation about fatigue and rest during the cockpit setup. In the US, we just implemented new rest rules (FAR117), but cargo operations were carved out and are operating under the old rules. This transcript is proof enough that we need one level of safety in our industry.
Although not required both the captain and F/O had FAR 117 rest prior to this duty period.
The F/O had been off duty for 62 hours.