Second panel: Yes, I think Tank is "loyal to the ship", but you'd better not count on him being "loyal to the mission" until you tell him what the mission really is. That is, if YOU even know what it is Captain!
Last panel: Smart guy getting the hell out of Dodge. Getting her on that ship could be equivalent to being sent to the Eastern Front, with a Gestapo agent following along behind you holding a loaded pistol to your head. As soon as you show up for duty, you're regrettably killed by 'enemy action'. Tavas may not have thought of that, but I'm not sure Tavas is actually in control. People who set out to commit a military coup are rarely unwilling to kill anyone who gets in their way.