diff --git a/src/primaite/simulator/core.py b/src/primaite/simulator/core.py
index a5e39cc8..848570fe 100644
--- a/src/primaite/simulator/core.py
+++ b/src/primaite/simulator/core.py
@@ -179,18 +179,18 @@ class RequestManager(BaseModel):
         requests = []
         for req_name, req in self.request_types.items():
             if isinstance(req.func, RequestManager):
-                sub_requests = req.func.get_request_types_recursively()  # recurse
-                sub_requests = [([req_name] + a) for a in sub_requests]  # prepend parent request to leaf
+                sub_requests = req.func.get_request_types_recursively()
+                sub_requests = [[req_name] + a for a in sub_requests]
                 requests.extend(sub_requests)
-            else:  # leaf node found
-                requests.append(req_name)
+            else:
+                requests.append([req_name])
         return requests
 
     def show(self) -> None:
-        """Display all currently available requests and whether they are valid."""
-        table = PrettyTable(["request"])
+        """Display all currently available requests."""
+        table = PrettyTable(["requests"])
         table.align = "l"
-        table.add_rows(self.get_request_types_recursively())
+        table.add_rows([[x] for x in self.get_request_types_recursively()])
         print(table)
 
     def check_valid(self, request: RequestFormat, context: Dict) -> bool:
diff --git a/tests/conftest.py b/tests/conftest.py
index b8b50182..54519e2b 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -2,8 +2,8 @@
 from typing import Any, Dict, Tuple
 
 import pytest
-import ray
 import yaml
+from ray import init as rayinit
 
 from primaite import getLogger, PRIMAITE_PATHS
 from primaite.game.agent.actions import ActionManager
@@ -30,7 +30,7 @@ from primaite.simulator.system.services.service import Service
 from primaite.simulator.system.services.web_server.web_server import WebServer
 from tests import TEST_ASSETS_ROOT
 
-ray.init(local_mode=True)
+rayinit(local_mode=True)
 ACTION_SPACE_NODE_VALUES = 1
 ACTION_SPACE_NODE_ACTION_VALUES = 1
 
diff --git a/tests/e2e_integration_tests/action_masking/test_agents_use_action_masks.py b/tests/e2e_integration_tests/action_masking/test_agents_use_action_masks.py
index a299b913..745e280b 100644
--- a/tests/e2e_integration_tests/action_masking/test_agents_use_action_masks.py
+++ b/tests/e2e_integration_tests/action_masking/test_agents_use_action_masks.py
@@ -1,9 +1,7 @@
 # © Crown-owned copyright 2024, Defence Science and Technology Laboratory UK
-import importlib
 from typing import Dict
 
 import yaml
-from ray import air, init, tune
 from ray.rllib.algorithms.ppo import PPOConfig
 from ray.rllib.core.rl_module.marl_module import MultiAgentRLModuleSpec
 from ray.rllib.core.rl_module.rl_module import SingleAgentRLModuleSpec
@@ -43,7 +41,7 @@ def test_sb3_action_masking(monkeypatch):
     monkeypatch.setattr(env, "step", lambda action: cache_step(env, action))
 
     model = MaskablePPO("MlpPolicy", env, gamma=0.4, seed=32, batch_size=32)
-    model.learn(512)
+    model.learn(256)
 
     assert len(action_num_history) == len(mask_history) > 0
     # Make sure the masks had at least some False entries, if it was all True then the mask was disabled
diff --git a/tests/e2e_integration_tests/environments/test_rllib_multi_agent_environment.py b/tests/e2e_integration_tests/environments/test_rllib_multi_agent_environment.py
index e015c33c..26e690d0 100644
--- a/tests/e2e_integration_tests/environments/test_rllib_multi_agent_environment.py
+++ b/tests/e2e_integration_tests/environments/test_rllib_multi_agent_environment.py
@@ -1,7 +1,5 @@
 # © Crown-owned copyright 2024, Defence Science and Technology Laboratory UK
-import ray
 import yaml
-from ray import air, tune
 from ray.rllib.algorithms.ppo import PPOConfig
 
 from primaite.session.ray_envs import PrimaiteRayMARLEnv
@@ -12,7 +10,6 @@ MULTI_AGENT_PATH = TEST_ASSETS_ROOT / "configs/multi_agent_session.yaml"
 
 def test_rllib_multi_agent_compatibility():
     """Test that the PrimaiteRayEnv class can be used with a multi agent RLLIB system."""
-
     with open(MULTI_AGENT_PATH, "r") as f:
         cfg = yaml.safe_load(f)
 
@@ -26,14 +23,5 @@ def test_rllib_multi_agent_compatibility():
         )
         .training(train_batch_size=128)
     )
-
-    tune.Tuner(
-        "PPO",
-        run_config=air.RunConfig(
-            stop={"training_iteration": 128},
-            checkpoint_config=air.CheckpointConfig(
-                checkpoint_frequency=10,
-            ),
-        ),
-        param_space=config,
-    ).fit()
+    algo = config.build()
+    algo.train()
diff --git a/tests/e2e_integration_tests/environments/test_rllib_single_agent_environment.py b/tests/e2e_integration_tests/environments/test_rllib_single_agent_environment.py
index a02a078c..265257e4 100644
--- a/tests/e2e_integration_tests/environments/test_rllib_single_agent_environment.py
+++ b/tests/e2e_integration_tests/environments/test_rllib_single_agent_environment.py
@@ -3,7 +3,6 @@ import tempfile
 from pathlib import Path
 
 import pytest
-import ray
 import yaml
 from ray.rllib.algorithms import ppo
 
diff --git a/tests/e2e_integration_tests/environments/test_sb3_environment.py b/tests/e2e_integration_tests/environments/test_sb3_environment.py
index 27fb134b..a07d5d2e 100644
--- a/tests/e2e_integration_tests/environments/test_sb3_environment.py
+++ b/tests/e2e_integration_tests/environments/test_sb3_environment.py
@@ -20,7 +20,7 @@ def test_sb3_compatibility():
     gym = PrimaiteGymEnv(env_config=cfg)
     model = PPO("MlpPolicy", gym)
 
-    model.learn(total_timesteps=1000)
+    model.learn(total_timesteps=256)
 
     save_path = Path(tempfile.gettempdir()) / "model.zip"
     model.save(save_path)