diff --git a/docs/ENVIRONMENT.md b/docs/ENVIRONMENT.md
index 3d2dcfa..2340696 100644
--- a/docs/ENVIRONMENT.md
+++ b/docs/ENVIRONMENT.md
@@ -42,10 +42,10 @@ FORK_URL=https://mainnet.base.org docker compose up -d
 
 `red-team.sh` boots the docker-compose stack and then calls protocol operations using **Base mainnet** addresses for the Uniswap V3 periphery (V3_FACTORY, SwapRouter02, NonfungiblePositionManager). These addresses are only valid on a mainnet fork.
 
-`red-team.sh` calls `sudo docker compose up -d` internally, and `sudo` strips environment variables by default. Pass `FORK_URL` inline with `-E` to preserve it:
+`red-team.sh` calls `sudo docker compose up -d` internally. The script uses `sudo -E` so that `FORK_URL` is preserved across the sudo boundary:
 
 ```bash
-FORK_URL=https://mainnet.base.org sudo -E bash scripts/harb-evaluator/red-team.sh
+FORK_URL=https://mainnet.base.org bash scripts/harb-evaluator/red-team.sh
 ```
 
 ### FitnessEvaluator (`onchain/test/FitnessEvaluator.t.sol`)
diff --git a/scripts/harb-evaluator/red-team.sh b/scripts/harb-evaluator/red-team.sh
index 8b51d81..9d8e784 100755
--- a/scripts/harb-evaluator/red-team.sh
+++ b/scripts/harb-evaluator/red-team.sh
@@ -63,11 +63,13 @@ cd "$REPO_ROOT"
 sudo sh -c 'echo 3 > /proc/sys/vm/drop_caches' 2>/dev/null || true
 
 # Tear down completely (volumes too — clean anvil state)
-sudo docker compose down -v >/dev/null 2>&1 || true
+sudo -E docker compose down -v >/dev/null 2>&1 || true
 sleep 3
 
 # Bring up
-sudo docker compose up -d >/dev/null 2>&1 \
+# -E preserves FORK_URL (and other env vars) across the sudo boundary so that
+# anvil-entrypoint.sh honours the caller's FORK_URL override.
+sudo -E docker compose up -d >/dev/null 2>&1 \
   || die "docker compose up -d failed"
 
 # Wait for bootstrap to complete (max 120s)