V4 — Features (Page Index) — Tactical Action

This directory holds the V4 (a UE5 tactical-action universe of multiple game-style "cells") feature map, decomposed from the single ../V4_features.md hub into focused, in-depth, code-grounded pages. The hub remains the canonical entry point and preserves every section heading; each page below expands one part of the product with richer, code-grounded detail and an honest implemented / spec-only status. The companion architecture reference lives in ../architecture/.

Cross-reference convention. Page-to-page links are relative (./<slug>.md); the architecture companion for a feature page is linked as ../architecture/<slug>.md. Platform-foundation links point at the shared platform/ space.

Feature landscape#

flowchart TB Promise[V4 multi-cell tactical-action promise] --> Cells[Five differentiated ruleset cells] Cells --> FPS[Tactical FPS] Cells --> Stealth[Stealth and real-time tactics] Cells --> ARPG[Action RPG] Cells --> RTS[Real-time strategy] Cells --> Arcade[2D run-and-gun] FPS --> Shared[Shared cross-cell engine] Stealth --> Shared ARPG --> Shared RTS --> Shared Arcade --> Shared Shared --> Modes[Campaign co-op PvP horde training replay and signature modes] Shared --> Product[Creator community online progression vault and live service] Modes --> Platform[Accessibility localization hardware trust operations and launch] Product --> Platform

The landscape makes V4's central contract visible: one reusable platform hosts five products with different feel. Shared gameplay and services reduce duplication, but each cell retains its rules, camera, input, AI, content, and acceptance evidence.

Use this index by selecting the player-visible cell or cross-cell job, pairing it with the owning architecture topic, and then checking backlog, dependencies, current assets/code/tests/builds, product review, verification, and platform evidence. A plugin or shared system proves only its boundary; support requires the complete cell journey and applicable cross-cell regression coverage.

Every focused feature page appears exactly once below. The V4 documentation guide provides role-based paths and the cell-aware truth model, while the diagram atlas provides topology, action, data, state, composition, production, and release views. Cross-cutting links add context without creating competing canonical homes.

Orientation#

Product Promise & Conventions — what V4 commits to as a multi-cell tactical-action universe.
Subsystem Glossary & Plugins — every V4 subsystem mapped to code, and the plugin/cell structure.

The Cells#

The Tactical FPS Cell — the tactical first-person-shooter cell.
The Stealth & Real-Time-Tactics Cells — the stealth and real-time-tactics cells.
The Action-RPG (Wukong-Style) Cell — the soulslike action-RPG cell.
The RTS (StarCraft & AoE-Style) Cell — the real-time-strategy cell and its deterministic sim.
The 2D Run-and-Gun (Arcade) Cell — the 2D run-and-gun / arcade cell.
The Shared Cross-Cell Engine — the shared systems every cell reuses.

Modes & Content#

Game Modes: Campaign, Co-op, PvP & Horde — the core mode catalog across cells.
Training, Replay, Signature Modes & the AI Director — training, replay, signature modes, and the AI director.
Content, Creator Tools & Community — the content/creator tools and community features.

Online & Live Service#

Online Services, Networking & Esports — online services, networking features, and esports.
Live Service, Progression & the Vault — live service, progression, and the vault/store.

Platform, Trust & Launch#

Platforms, Operations & Hardware — platform support, operations, and hardware/peripherals/XR.
Trust, Safety & Compliance — trust/safety and compliance.
Narrative, Extras & Launch — narrative, extras/codex, and launch readiness.