diff --git a/COURSE_MAP.md b/COURSE_MAP.md
index 35476bc..269579d 100644
--- a/COURSE_MAP.md
+++ b/COURSE_MAP.md
@@ -170,7 +170,7 @@ No new concepts, 30–60 minutes.
 
 ## Level 4: Interfaces and Reports
 
-**Prerequisite:** Level 3 complete
+**Prerequisite:** Level 3 complete, Data Recall Checkpoint complete
 
 The game has domain logic, validation, and persistence.
 Now it needs a real interface: CLI commands, logging, readable terminal output, and reports.
diff --git a/README.md b/README.md
index 3a58405..a3185dd 100644
--- a/README.md
+++ b/README.md
@@ -56,11 +56,11 @@ uv run python level_1_python_basics/missions/01_hero_stats/check.py
 
 ## Course structure
 
-Seven levels, each with focused missions and two checkpoint projects before the boss fight:
+Seven levels combine focused missions with larger projects and boss fights:
 
 ```
 level_1_python_basics/              ← Python fundamentals through terminal RPG + data analysis
-  missions/                         ← 20 focused exercises (one concept each)
+  missions/                         ← 23 focused exercises (one concept each)
   projects/                         ← 5 boss fights that combine what you learned
 
 level_2_oop_and_design/             ← OOP, refactoring, design patterns
diff --git a/level_5_maintainability/missions/04_pytest_fixtures/README.md b/level_5_maintainability/missions/04_pytest_fixtures/README.md
index 55cc7f4..76ea79d 100644
--- a/level_5_maintainability/missions/04_pytest_fixtures/README.md
+++ b/level_5_maintainability/missions/04_pytest_fixtures/README.md
@@ -121,7 +121,7 @@ Uncomment and complete each test function:
 ### Step 3: Run the checker
 
 ```bash
-python check.py
+uv run python check.py
 ```
 
 ---
@@ -187,4 +187,4 @@ def test_combat_always_hits(monkeypatch):
 - [ ] `conftest.py` has `@pytest.fixture` for `warrior`, `goblin`, and `make_hero`
 - [ ] `test_combat.py` has at least 5 `def test_` functions (all uncommented)
 - [ ] All tests pass: `pytest -v`
-- [ ] `python check.py` prints `✅ Mission 04 complete!`
+- [ ] `uv run python check.py` prints `✅ Mission 04 complete!`
diff --git a/level_7_concurrency_and_background_work/projects/03_concurrent_tournament_runner/README.md b/level_7_concurrency_and_background_work/projects/03_concurrent_tournament_runner/README.md
index 30f0fa4..e84eb5c 100644
--- a/level_7_concurrency_and_background_work/projects/03_concurrent_tournament_runner/README.md
+++ b/level_7_concurrency_and_background_work/projects/03_concurrent_tournament_runner/README.md
@@ -45,3 +45,7 @@ Quality habits still apply — run Ruff on the code you changed before consideri
 ```bash
 uv run python -m ruff check api/ tests/
 ```
+
+---
+
+Level 7 complete. One mandatory step remains: the [Final Analytics Epilogue](../../../final_analytics_epilogue/README.md) returns to the balance question from Level 1, now using data from the finished RPG.