Lieutenant question

By Honking weasel, in Descent: Journeys in the Dark

Just had a couple of run through games before introducing to my gaming group and have a question re:lieutenants

1) the rules imply that lieutenants are similar to heroes hence the stat lines for strength etc. but they have no fatigue and so hence presumably cannot sprint like heroes

2) also if a lieutenant is defeated does he come back as a reinforcement castle daerion quest suggests he can

3) if he does come back after being defeated does he roll 2 red dice and recover health as for a knocked out hero

Thanks in advance for answering and sorry if I have just misread the rules

1. Use OL card "Dash" to sprint.

2. Lts are their own monster group. If reinforcements say you can bring back any monster group then yes.

3. Just as any monster is played as a reinforcement, they activate with full health.