Deus Ex: Human Revolution

- When Sarif offers you a choice of weapons, I recommend the tranq rifle (choose nonlethal-ranged). It's the only scoped weapon you'll get for a while.

- Contrary to what the tutorial implies, you don't have to sneak up on someone to do a takedown. Also, unless you are roleplaying an asshole, there is no reason to do a lethal takedown, ever.

- The shotgun is a rape machine, even without the upgrade.

- To disarm a mine, hit walk, then crouch-walk up to it and use it.

- The EMP shielding aug actually makes you totally immune to electricity, so you can walk through electrified water and such.

- When hacking, if you capture the red security node, the hack succeeds and you automatically get all the bonus nodes. It's not always possible, tho.

- Yes, there are some useless augs. The stealth enhancers and hacking analyzers are all total crap, while the flash suppressant, gas immunity, and sprint boosters are marginal at best.