Why did they turn the most sympathetic character into the bad guy?
Irwin starts off the film as the most empathetic, considerate, calm and supportive crewmember but as soon as the proverbial hits the fan he transforms into a blubbering, cowardly, backstabbing nervous-wreck. It didn't make any sense since he had hitherto suggested no ruthless or obnoxious traits.
Stupid writing, and perhaps idiot macho filmmakers having a dig at the sensitive nice guy type.