Rumbler

The Rumbler was originally set to be in BioShock, known as the Slow Pro

Big Daddy at that time, but was cut from the game. The Rumbler's attributes are not the same as it's earlier counterpart.

It will behave like the other Big Daddies but will have a completely different arsenal. It can fire miniature turrets that will lay down suppressing fire. While those turrets attack his assailant, he will get behind them and fire RPG's at it's target. Both turrets and RPG's are susceptible to Telekinesis.

Attacks
So far, the Rumbler has been observed to perform two types of attack:

- In the first, he throws a deployable turret to the ground, which starts attacking the player.

- In the second, he fires a rocket at the player from a shoulder-mounted Grenade Launcher.

It is very likely he will have some sort of melee attack as well.

Strategy
The Rumbler's attacks seem to be primarily projectile-based, so Telekinesis could be the most effective weapon in taking it out. Sonic Boom could also help in reflecting the Rumbler's turret/rocket back at it.

It is also recommended to hack the turrets it will deploy, or otherwise subdue them to make the fight easier.

Other than that, it is very possible standard Big Daddy strategies may apply to the Rumbler, such as using electricity-based weaponry and exploding the oxygen tank on its back.