Unlockables

Snow Suit - The factory level once you have finished using the jetpack; go to the door and look inside the boxes
Covert Suit - At the room with the final bomb on the Station T level, go to the big safe
Black Tuxedo - During the Gypsy Camp mission, upstairs on a table in the corner
Formal Dinner Suit - On the second level complete the maze to get into Moneypenny's office, then search the drawer.

Get the indicated number of awards to unlock the corresponding bonus mission:
Tunnel: 10 awards
Ruins: 25 awards
Plaza: 40 awards
Airport: 60 awards


Easy ammunition
When searching a file folder or something else and you find ammunition, keep searching it over again to fill up your gun. You can return to the file folder at anytime and do it again.


Easy kills
Sometimes, when using Bond Focus, you will see two targets, the heart or a lower target. If you shoot the lower target with a grenade, it will fall off and explode in front of the enemy.


Easy skill points
When using Bond Focus, shoot either target to get skill points.


Hints

There will be many firefights in which you can hide behind objects so be sure to take cover. Anything solid, like pillars, walls or doors are perfectly useable. As the game progresses, it'll be impossible to advance without taking advantage of your surroundings.

Your upgrade points are vital so don't waste them on pistols, it's unlikely that you'll even use them past the first level. Spend them first on Body Armor, then SMGs and Assault Rifles.

When you are about to run dry on ammo, enter Bond Focus mode and go for headshots. Conveniently, there seems to be more ammo packs around when your ammo is low, and it frequently is.

When driving, don't waste your missiles destroying smaller targets like cars and trucks. Use the machine guns instead. It's likely you'll need them later, on the same level, for helicopters or other sturdy and highly damaging targets.

As stated before, ammo is scarce in this game so pick up as much as possible. This will basically give you a fighting chance to pass the level. You may have to resort to your trusty old PP7, so don't be afraid to whip that out when your shotgun or machine gun runs out of ammo.

Keep moving! When you are taking on any amount of opponents, you'll find that you'll suffer severe damage if you don't move around often. A moving target is harder to hit.

The Sonic Cufflinks are an unusual weapon that you won't use many times. It is never necessary to complete any section, but can be useful to stall big enemies like giant commandos, especially when low on health.

James' Aston Martin is an awe-inspiring machine. So don't crash it! It's worth replaying earlier missions to make sure you mastered the control system, as it doesn't worth giving away a beaten-up car for your enemies to destroy.


Red Grant Boss battle glitch

In the Red Grant boss battle, when he momentarily goes out of sight behind the boxes, switch to the Sonic Cufflinks. Draw a bead on him and shoot with three cufflinks to immobilize him afterwards. While he is frozen, finish him off with any weapon. You can see his health bar disappear very quickly and he will drop to the ground. The game is supposed to automatically revert to an intermission sequence to let you know you are in the next level, but it does not. You can see that he is dead, but his now emptied health bar frame will still remain. You cannot get Bond out of the area. All gates and doors will remain locked.