Complete the following tasks to unlock the corresponding bonuses:
Level 1 "Warehouse" Get to your car: Freeze's Starting Outfit. Take two Human Shields: 25 To Life Decals. Defeat 20 enemies: Flaming Beanie.
Level 2 "Apartment" Return to you car: Rick Ta Life outfit Cover up 4 tags: Black Bandanna. Defeat 25 enemies: Barbed Wire Hat.
Level 3 "Downtown" Escape to your getaway car: Bank Robbing Outfit. Break into ATMs (shoot them): Gold Earrings. Complete level without dying: White Sweatband. Defeat 25 Enemies: Westside Knife Tat.
Level 4 "Culdesac" Get the evidence to Mendoza's car: Officer Williams. Keep your partner alive: Tactical Vest. Apprehend 5 felons: Kneepads (Take out the Zapper, stun them, go up to them and arrest them). Achieve 20% Accuracy: Holster.
Level 5 "Club" Get to the subway: DJ Envy Outfit. Apprehend 4 drug dealers: ATF Decals (dealers are the white people with green jerseys). Achieve 25% Accuracy: Big Mustache. Register 8 Head Shots: Riot Helmet.
Level 6 "Subway" Trap Shaun in subway train: Shaun's Getaway Outfit. Free a cop: Full Tac Harness. Achieve 30% Accuracy: Big Dawg Tat. Defeat 24 enemies: Sideburns.
Level 7 "Tijuana" Find Riggs at the club: Shaun's TJ Outfit. Tag over 4 gang tags: Mexican Flag Bandanna. Defeat 60 enemies: Clock Cap Decal.
Level 8 "Casino" Escape with loot: Federates Outfit. Rob five cash carts: Triple Bracelets. Defeat 45 enemies: Oozie Chest Tat. Register 12 headshots: Scorpion Black Tat.
Level 10 "Prison" Finish level: Freeze's Prison Outfit. Protect Lazarus: Chinese Pain Tat. Defeat 30 enemies: No Parole Decal.
Level 11 "Mall" Finish level: Freeze's Mall Outfit. Break into 5 ATMs: Black Gloves. Complete level without dying: Red Hightops.
Level 12 "Hacienda" Kill Shaun: Daz and Tech N9ne Defeat 30 Enemies: G Cap Decal. Find 5 secret stashes: Bulldog Chain (in the Waterpool Courtyard there are two stashes in the vases. In front of the house on the right side in the yard is a stash in a vase. On the deck before entering is a vase with a stash. Before you fight Shaun there is a Vase with a stash in front on the spiral staircase).
On level 2, "Apartment", when you go past your first tagging location, kill every policeman. There should be an apartment on the bottom floor, in the northern wing on the right. It is apartment number 15. Open the door and find the room behind the curtain, then take the high powered rifle on the table in the corner.
On the Tijuana mission where you get asniper rifle and the man says, "Now the Federales are after me!", you fight a group of men with rifles. They will be on the rooftop directly across the courtyard from where you are standing. To easily take them out, step to back into the corner and look just above the shack with the red roof. You can just barely see the head of each sniper, but they cannot see you. Take them out one by one until there are none remaining. You will save plenty of ammo by doing this. After that, go through the courtyard and around the corner. You are now rushed by multiple enemies. Duck behind the rear of the police car and snipe the men in the head as they come around the corner. You will save even more ammo by doing this. Around the next corner there are several more lambs to the slaughter. Duck behind cover before you go any further. Make some noise so that they will come around the corner exposing themselves. Snipe their heads. Note: One of them has a rocket launcher; take him out first if you get rushed.
Note: Note: This procedure requires editing a game file; creating a backup copy of the file before proceeding is recommended. Locate the "easy.var" file in the "\25 to life\data\var" folder. Uncheck the read-only attribute of the file then use a text editor to open it. Find the "AI2PlayerDamage 0.14" line and chane the "0.14" to "0.00". You will now get no damage when the game is played under the easy difficulty setting.