These gun emplacements can cut you down quite easily, especially when you’re trying to fend off a dozen other attacks.

No matter what your playstyle or difficulty level, you’ll want to use Possession early and often to take control of enemy turrets.

I’ve never actually killed Elizabeth and don’t know if you can, but if you happen to find yourself in the company of other NPCs and are constantly stunning them with Overkill or unintentionally dealing damage with your traps, they will definitely turn on you. Note that Vigors (like the Murder of Crows) can harm allies. Then you can spam Vigors like crazy, and thanks to the Blood to Salt gear (see below), your Salts will automatically replenish. They require Salts to use, so I recommend upgrading your salt capacity to 10 before wasting any upgrades on your health or shields. Vigors are BioShock Infinite’s version of Plasmids. Three top investment pros open up about what it takes to get your video game funded.