Doom Eternal Mission 1 Walkthrough — Hell on Earth

Doom Eternal’s inaugural mission serves as both an introduction and a comprehensive combat tutorial, establishing the relentless pace that defines the entire game. While initially accessible to newcomers, this level conceals numerous strategic challenges that demand tactical thinking beyond simple shooting. Understanding the core mechanics early will significantly impact your success in later, more demanding encounters.

The opening segment introduces The Fortress of Doom, your central hub between missions where you can access upgrades, collectibles, and narrative elements. Many players underestimate the importance of mastering movement during these early encounters, leading to difficulties when facing faster, more aggressive demons later. The game’s difficulty curve escalates rapidly, making foundational skill development crucial from the outset.

For comprehensive guides on advanced gameplay mechanics and progression systems, consult our Complete Guide covering strategic approaches to various combat scenarios and enemy types.

Your demon-slaying initiation begins with eliminating three Zombies using the Combat Shotgun. This initial engagement teaches weapon handling and target acquisition fundamentals. Exit the starting chamber and descend left down the staircase, dispatching any remaining undead threats while securing the essential Chainsaw tool.

The Chainsaw represents a critical resource management component, automatically replenishing fuel over time and serving as your primary solution for ammunition shortages. Strategic deployment ensures you never face critical weapon downtime during intense firefights. Many newcomers conserve the Chainsaw excessively, creating unnecessary resource scarcity in extended engagements.

Advanced players should note that Zombie elimination prioritization affects later spawn patterns. Eliminating specific zombies first can trigger advantageous enemy placement in subsequent arena encounters.

Progress through the Hell Barge’s interior following navigation markers until encountering a substantial cubic obstruction. Execute a melee strike against this barrier followed by a double-jump maneuver to ascend through the overhead opening. Navigate toward the objective marker to discover a luminous blue drone identified as a Mod Bot.

Mod Bots present permanent weapon enhancement choices that significantly alter combat effectiveness. While initial selections appear inconsequential, they establish your damage output foundation for several subsequent missions. There exists no objectively superior option initially—selections should align with your anticipated engagement preferences and tactical approach.

Strategic consideration: The alternate modification becomes available remarkably soon, allowing experimentation with both configurations within the early game phase. For detailed analysis of weapon specialization and upgrade paths, reference our Weapons Unlock guide covering optimization strategies.

Advance through the passageway and doorway to encounter your inaugural combat arena. Doom Eternal structures its challenge around these dedicated engagement zones, demanding mastery of mobility, target prioritization, and resource cycling. Survival depends on perpetual motion—stationary positioning guarantees rapid elimination.

Movement mastery involves constant strafing, jump timing optimization, and environmental utilization for projectile evasion. Maintain proximity to wounded adversaries to execute immediate Glory Kills, converting near-defeat into health regeneration opportunities. This health-recovery mechanic transforms aggressive play into sustainable survival strategy.

The initial arena introduces Zombies, Imps, and Soldiers as your primary opposition. Imps and Soldiers deploy fiery projectiles with distinct trajectories—learning these patterns early enables effortless evasion later. Shotgun discharges efficiently neutralize standard threats, while Chainsaw implementation becomes essential during ammunition depletion scenarios.

Understanding class-specific strengths and weaknesses enhances combat effectiveness. For comprehensive character role analysis, consult our Class Guide detailing specialization advantages.

Upon clearing the engagement zone, proceed through the designated exit where a narrative sequence activates. Post-cinematic, advance forward and enter the devastated structure on your right to locate an additional Mod Bot awaiting interaction.

Subsequent exploration reveals an expansive zone containing Zombies strategically positioned near explosive crimson barrels. Detonate these environmental hazards for efficient undead disposal, then descend to the ruined roadway beneath—fall damage remains nonexistent for your protagonist. Neutralize the Imp and dual Soldiers anticipating your arrival at the base, then trace the verdant armor collectibles toward a chasm separating two platforms connected by an overhead conduit.

Execute a double-jump onto this pipeline—your character automatically grasps and propels himself across the gap. This introduces the game’s traversal mechanics that become increasingly complex in later missions.

The subsequent combat arena introduces the Arachnotron, a heavy-class ranged demon featuring a dorsal-mounted cannon. Concentrate firepower on this vulnerability to disable its long-distance assault capabilities, then administer additional shotgun volleys to complete the elimination. Precision targeting of weak points dramatically reduces encounter duration and resource expenditure.

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