And this is the 4-II details from KoeiWarriors:
戦国無双4 - II
Sengoku Musou 4 - II
Created by: KOEI
Console: PlayStation 3, PlayStation Vita & Playstation 4
Release Date: 11 February 2015 [JP]
Website:
http://www.gamecity.ne.jp/sengoku4/2/index.html
New Characters
井伊直政 Ii Naomasa (Seiyuu: Konishi Katsuyuki, aka Maeda Toshiie)
Weapon: Longspear
Description:
Naomasa has inherited his foster mother's kindness and strength. He seeks to courageously do good, a hero hoping to shoulder the burden of the next generation. He views Toyohisa as a worthy rival and opponent.
Skills
Characters can use "strategy books" to learn various skills.
Skills may require you to have learned other skills and to be of a certain level. The layout of skills is different for each character, so the order in which you learn skills differs between characters.
Weapons
For a particular weapon rank, the [max] level is fixed. By combining weapons, level will increase and abilities will grow.
Also, by combining weapons with the same attributes it's possible to break limits, which increases the maximum level and might add new abilities. It's more likely that you'll break limits if you use weapon with high rank and level in synthesis.
Horses
Like with weapons, a horse's [max] level is fixed by its rank, and combining them will make them stronger.
By combining the same kind of horse, you can break limits, which increases max level and might adding new abilities.
Under the modes tab,
Infinite Castle (Main Building)
Take one character through an unending series of stages. Challenge yourself to go as deep into the castle as possible while collecting weapons and horses. Depending on your life and the time limit, decide whether to press on or to turn back.
Missions
Each floor you must complete a mission to advance.
As you reach higher floors, be on the watch for stronger enemies. Defeating them will gift the player with better rewards.
Rewards (Spoils of War)
Obtained weapons and horses can be kept by choosing to exit the castle.
Going deeper into the castle results in better rewards, however there is a limit to the number of rewards that you can take with you.
Choosing when to leave due to a lack of life or time is important.
Arrival Rewards
By reaching a certain floor, you will obtain benefits for the next time you enter the infinite castle.
By continuously playing you will obtain advantages that make it fun to come back for more.
Infinite Castle (Annex)
A brand new challenge mode.
Challenge high scores by playing for a short time with special rules.
Brave Warrior Room
A mode where you defeat as many soldiers as possible within the time limit.
Effectively use a combination of normal, charge, and godspeed attacks to efficiently defeat many enemies.
Gold room
A mode where you collect as much gold as possible within the time limit.
By achieving a number of points, enter a state where hitting enemies generates gold.
[Not 100% on the first half of that last sentence]
Gale Room
A mode where you defeat standard bearers, while racing to the finish line.
Surpass obstacles such as shield soldiers and archers and defeat the standard bearers who have been placed as checkpoints.
Verge of Death Room
A very hard mode. Clear Brave Warrior Room, Gold Room, and Gale Room with a certain score to unlock.
One hit from the enemy is enough to defeat you, which creates a feeling of tension. How many enemies can you defeat within the time limit?
Create New Officers
Edit mode is back due to popularity.
You can enjoy your original officers in free mode and in infinite castle mode.
[note: no mention of chronicle mode, so I'm starting to doubt it's included. I didn't see anywhere on the site that says this definitively, but then I really only skimmed other sections, so I may have missed something]
http://s13.zetaboards.com/koeiwarriors/single/?p=9904037&t=7108052