Learn how to unlock Battlefield 6 codex entries in the campaign by finding field manuals and completing challenges. The game's codex has over 200 entries.
The game's codex functions as a World War I encyclopedia, featuring over 200 unlockable entries (concise text articles) organized into five categories: The Weapons, The War, The Vehicles, The Tactics, and The World. You can access your unlocked pages from the main menu under Soldier > Codex. Selecting a locked entry will display the requirement needed to unlock it. A total of 53 codex entries can be unlocked within the campaign by completing specific challenges and by locating all the field manuals (collectibles) within each chapter. Your progress is saved immediately after unlocking a codex entry, allowing you to quit the chapter replay right away if you are specifically aiming to unlock it. The remaining 145 codex articles are unlocked by fulfilling a range of basic requirements while playing in online multiplayer matches. Refer to the Trophy Trail (see Section 06) for details on how to unlock all codex entries in each chapter of the campaign.
Feats
There are two trophies for achieving certain types of kills during the campaign and another two for accomplishments in specific chapters.
22 Up Close and Personal [Bronze/10G]
Perform a melee kill on 10 enemies anywhere in the campaign. You can press R3 (right stick) to perform a melee attack. The most effective way to use melee is to creep up on an enemy and attack them from behind for a one-hit takedown kill. You are very likely to achieve this trophy without making any special effort. There are several sections of the campaign where you can utilize stealth tactics, and one of the challenges in the 'Be Safe' chapter requires you to get ten melee kills, which alone would be sufficient for the trophy. When using stealth, remember to stay crouched (or prone) to make your soldier harder to spot, avoid sprinting near enemies, and press the touchpad (or Back button on Xbox) to throw an empty cartridge case to distract an enemy, luring them away so you can sneak up behind them.
23 Mightier than the Shovel* [Bronze/10G]
Find the hidden cavalry sword and take down an enemy during the 'Breakdown' chapter, the third chapter of 'Through Mud and Blood' (the first of the five war stories). After finding the first spark-plug, go east, follow the main track south, and enter the village through the barricaded entrance. Follow the cobbled road and look for the second building on the left (north side) which has a mounted machinegun above the door and a large German flag flying from the front. Enter the building via the front door, and you will find the cavalry sword on the floor underneath a table on the left side of the first room. Press Square (or X on Xbox) to pick it up, and it will be equipped as your melee weapon, replacing your shovel. Watch out for enemies as you enter the village. You can use your binoculars by holding R1 (or RB) to tag them from a distance or the suppressed sniper rifle (from the top floor of the first mill) to kill them from a distance. If you haven't seen or killed him already, look out for a guard who will come down from the upper floor of the house, and remember to check up there too if you want to grab a suppressed pistol. If you enjoy using the sword here, you can work your way stealthily through the village and farm further kills for 'Up Close and Personal' (trophy #22).
24 Shock Wave [Bronze/10G]
Kill 5 enemies by using dynamite in the campaign. Dynamite is one of several gadgets that can be collected from medium-sized weapon crates, most of which can be found in the green weapon tents scattered around each level. When you have dynamite equipped, you can select it with d-pad left or right. Press L2/LT to toss one.
Trophy Details
17 Taking down Giants [Silver/40G]
Unlock all codex entries in 'Friends in High Places'. This is the second of five war stories in the campaign.
18 All Men Dream* [Silver/40G]
Unlock all codex entries in 'Nothing is Written'. This is the fifth of five war stories in the campaign. *This trophy is named for a quote from 'Seven Pillars of Wisdom', Lawrence of Arabia's book describing his experiences during the 1916-18 Arab Revolt: "All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find that it was vanity: but the dreamers of the day are dangerous men, for they may act their dreams with open eyes, to make it possible. This I did."
19 Sound of Thunder [Silver/40G]
Unlock all codex entries in 'Through Mud and Blood'. This is the first of five war stories in the campaign.
20 Conquering the Mountains* [Silver/40G]
Unlock all codex entries in 'Avanti Savoia!'. This is the third of five war stories in the campaign. *Sometimes it took lines of two thousand men to draw giant artillery pieces up into the mountains of northern Italy. This is illustrated in the painting known as 'Conquering the Mountains' by Cyrus Cuneo.
21 The Hills of Gallipoli [Silver/40G]
Unlock all codex entries in 'The Runner'. This is the fourth of five war stories in the campaign.
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