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In Modern Warfare 4 Season 1, the supplied weapon details place the Cronen Osprey at Battle Pass Tier 16 and the CSG-35 at Tier 36, with both base guns free. Their listed level tracks differ substantially, and the details should be checked in game before planning around them. The Bot Lobby MW4 page offers another option to consider alongside ordinary matches.

How Modern Warfare 4 weapon tiers work

Battle Pass tiers determine when you receive the two base guns; weapon levels govern their individual progression afterward.

Playing matches can advance the pass while using an unlocked weapon builds its own track, so the two goals overlap but aren't interchangeable.

The supplied details describe a 100-tier pass and free base weapons, but don't establish the exact time needed to reach either tier.

Modern Warfare 4 weapon tiers and listed stats

Compare unlock requirements, magazine capacity, and weapon levels before deciding which gun to prioritize.

The Osprey arrives earlier and suits mid-range engagements, while the CSG-35's shorter track and rapid fire favor close-range sessions.

Fire rate alone doesn't establish damage or time to defeat an opponent, so check how each gun handles before committing your tokens.

Seven decisions for unlocking and leveling both weapons

These steps connect pass progression with the separate work required to prepare each weapon for its attachment and camo goals.

1 Reach the Osprey tier first

The rifle is listed at Tier 16 on the free track, giving you an earlier starting point than the SMG.

You don't need the premium pass to claim its base version, so check your progress before spending COD Points.

Once unlocked, equip the rifle during matches where you can consistently find mid-range fights.

2 Control the Osprey's recoil

The 5.56 rifle's listed 882 RPM can empty its 30-round magazine quickly during sustained fire.

Its recoil rises and pulls right, making shorter bursts a useful starting point at mid range.

With 90 rounds in reserve, reload timing and ammunition use matter during longer streaks.

3 Plan for the Cronen Helix Mk II

The Osprey's Apex Attachment is described as a double-barrel receiver with semi-automatic dual fire.

It fires on both trigger pull and release, changing the rhythm of the rifle substantially.

Its exact unlock level hasn't been stated, so don't assume it appears at a particular rank.

4 Claim the CSG-35 at Tier 36

The CSG-35 arrives later on the same free pass, with a listed 42-level weapon track.

Its 1,200 RPM rate and 28-round magazine reward close encounters but make reloads a frequent concern.

The listed reserve is 112 rounds, though carrying ammunition doesn't eliminate the need for safe reload windows.

5 Keep the CSG-35 close

Modest damage per bullet and rising recoil beyond roughly 20 meters limit the SMG's reach.

Choose routes that put opponents nearby rather than expecting its high fire rate to solve every fight.

Its CSG Crossfire Apex Attachment changes the weapon to dual-wielded SMGs, giving you a distinct close-range option.

6 Separate shared and weapon-specific unlocks

Previously earned shared attachments can carry over, reducing the number of slots you start without.

Weapon-specific attachments, Apex progression, and camo work remain tied to the new weapon, so inspect its track after unlocking it.

7 Decide when to use Weapon Prestige

Maxing a weapon opens an optional Prestige reset that relocks ordinary attachments while retaining Apex and Blueprint attachments.

Check that you've earned the attachments you want before resetting, especially if the Helix is your Osprey goal.

Put the unlock and XP plan into practice

Before starting, save Double Weapon XP tokens and check which shared attachments are already available.

Advance the pass to Tier 16, equip the Osprey, and activate a token when you're ready to play matches with it.

Continue pass progress toward Tier 36, then switch to the CSG-35 when its shorter track better fits your immediate goal.

If progress feels slow, choose a respawn mode that gives you more chances to use the equipped weapon.

Adjust for mode, range, and reset costs

Don't confuse Battle Pass XP with Weapon XP: an available token may target one track rather than the other.

The distinction matters when your gun gains ranks but its next pass reward remains locked; inspect the token type before activation.

Search and Destroy and Collateral list more XP per elimination after the cited update, but fewer opportunities can offset that advantage.

Compare your actual opportunities to fight, then change modes or engagement range when the current setup limits weapon use.

Benefits and limits of this progression plan

The plan suits players pursuing both free weapons, with a trade-off between steady rifle progress and a quicker SMG track.

Benefits

1. plus access: Both base weapons are listed on the free pass, so purchasing premium isn't required.

2. Earlier rifle: Tier 16 lets you start the Osprey track before reaching the CSG-35.

3. Shorter SMG track: The CSG-35 needs fewer listed levels to reach its maximum.

4. Shared equipment: Existing shared attachments can provide useful options immediately after unlock.

5. Flexible XP use: Saved weapon tokens can support the gun you choose to prioritize.

Limits

1. Pass requirement: Free access still requires reaching the relevant tier.

2. Long rifle track: The Osprey's 70 levels demand more progression than the SMG's 42.

3. Uncertain Apex timing: The Helix's exact unlock rank hasn't been specified.

4. Close-range dependence: The CSG-35's recoil and damage profile make distant fights less suitable.

5. Prestige reset: Ordinary attachments relock after Prestige, creating extra work if you need them again.

Start with the Osprey if you want progress as soon as the first free weapon becomes available, then move to the CSG-35 for its shorter track. Check the current pass and weapon screens before committing tokens, since the supplied details may change. The CoD MW4 Bot Lobby for sale page lets you review an additional option at your own pace.