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2. Try to conserve ammunition by getting head shots or blowing up computers, but if you do this, keep your distance.
3. Be silent. Walk at all when approaching guards and try to use the silenced Falcon as often as you can.
4. If you trip an alarm, get out grenades to ward off villains quickly.
5. Be safe when going round corners by strafing. This means you are everready to take out guards who are using the corner as cover.
6. Try to keep cover at all times. Guards will fire at you as soon as they see you, so hide behind something and wait until they have to reload before jumping them.
7. Guards with two guns or explosives are very tricky to counter, but constant movement and accurate shooting will overcome them.
8. If killing guards would break one of your objectives, stealth is essential. Tranquilise the guard or send in the DrugSpy. Control the little gadget slowly and gingerly so it isn't noticed by guards, and quickly pull the trigger to put the opposition to sleep.
9. Using your dukes is also vital. Use tremendous stealth and crack the enemy on the back of the head to knock them out cold. The Falcon has the same effect, but can reach further and hits harder.
10. Finally, in vicious gunfighgts, use guns that reload quickly like the CMP-150 so you're not caught offguard in the battle. The shotgun takes about a minute to reload for eight shots, so avoid using this weapon unless you are incredibly desperate.