
Something that always struck me as odd about Tommy; what exactly is the narrative of his main ability? Why do police officers in Arkham get paid so generously for casualties and property destruction? Why do they get patched up and returned to action so quickly? After a quick read of his background, identifying him as a nepotism hire with relatives in high places and playing a few scenarios, I came to a conclusion.
Tommy's true ability is that he has a police radio. Whenever anything bad happens, Tommy begins screaming into the radio things like "Officer down! I repeat, officer down! We need backup immediately!", "I've been hit!" or "Taking heavy fire!". Afraid of making enemies of his relatives in Boston, the Arkham sheriff department (or perhaps the precinct in Boston itself) has no choice but to send additional backup and support to make sure he makes it out alive. Unless it's so obviously his own damn fault that the sheriff's department is too annoyed to care for the consequences.
The true details of whatever it is he's fighting probably don't ever make it across to the official channels, but it's clear he keeps having run-ins with some sort of highly organized and heavily armed crime syndicate given all the wounded and property damage. His family in Boston make sure he doesn't face any consequences for reckless endangerment of civilian lives. In any case, if you're ever wondering where your Arkham city council rates are going, half of it is probably spent on bailing Tommy out of whatever he's gotten himself into this time.