Dishonored 2 is a game that primarily focuses on player choice and immersion. it’s an action stealth game where the player is constantly in action and the core mechanics of the gameplay are:

Character Choice:

• Corvo Attano: Known as the stoic assassin from the first game, Corvo possesses a strong physique and other supernatural abilities such as Blink and Bend time.
• Emily Kaldwin: Known as The Empress, Emily has extremely bizarre powers such as Far Reach and Mesmerize.

Core Gameplay:

• Stealth: Stealth is the most prized element of this game. Always walk in the shadows, do environmental distractions, and do non-lethal takes downs.
• Abilities: All characters possess unique supernatural abilities, alongside runes and bone charms; they can also have further upgrades. You are free to mess around with it as some abilities may suit you better than others.
• Weaponry: You are equipped with a whole plethora of weapons, crossbows, and pistols to swords and grenades, choose those fit your playstyle.
• Chaos System: The series allows Ben to choose how the game ends, with Ben being the one to do actions that shape the game’s ending steers the game in a “High violence” end while low violence results in more peace

General Tips:

• Explore Thoroughly: The world has several dungeons, hidden pathways and side missions. Make sure you take your time scavenging through areas never seen before.
• Utilize The Heart: The Heart is an amulet that shows the enemy’s location, treasures and traps. Use it wisely and be strategic with your victory.
• Upgrade Wisely: Ability upgrades should match the way you prefer to play the game. Stealth based upgrades are good but they have no combat abilities to them.
• Experiment: Don’t hesitate or be afraid, go ahead and try different things from the rest and use different abilities and new weapons.

Mission Specific Strategies:

• A Long Day In Dunwall: Use crouching to go undetected and then use enemies to get close to guards for a takedown.
• Edge of the World: Use Far Reach to move across different areas in the environment which were out of reach.
• The Good Doctor: Planning beforehand always helps in succeeding the mission. Use the heart to see where the enemies are and act accordingly.
• The Clockwork Mansion: There are a number of environmental puzzles in this task. Use your skills to complete these and advance the game.
• The Royal Conservatory: Combat and stealth is required in this mission. Be ready to have differing circumstances and deal with those.
• Dust District: In this mission, you are placed in a distinct setting and have to face certain issues. Use the Heart to traverse through the district while ensuring that you remain undetected. 
• A Crack in the Slab: This mission takes place in a vast system of tunnels and rooms. To help in the planning of your movement, use the Heart to position yourself properly. 
• The Grand Palace: This mission is the defining moment of the game. Now, all of your skills and abilities come into play, and you must utilize them against your enemies.

Thanks to these tips and strategies, one can become proficient in playing Dishonored 2, allowing for the player to experience the most intricate and extensive dimensions of the game.