EFT Icebreaker Loadout Tier List

The 1.0.5 recoil system inherited the ballistics overhaul from 1.0 release: armor penetration values were rebalanced, and previously meta weapons got hit. M1A is garbage now. High-pen ammo matters more than rate of fire in most of these engagements. This list reflects that reality.

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Loadouts Ranked S to F

Each entry covers weapon, ammo, armor class, and verdict. No padding. If it's not here, it's not worth discussing on this map.

Tier	Weapon	Caliber	Role	Tactical Notes
S	HK 416A5	5.56×45	CQB King	Laser recoil, high RoF. Essential for shredding Class 5–6 armor.
S	SIG MCX-SPEAR	6.8×51	Highest Pen	Top meta choice; chews through T5/T6. Best in semi-auto.
S	Vector .45 ACP	.45 ACP	Shredder	Insane fire rate melts unarmored spots. Terrifying in tight rooms.
A	SCAR-H	7.62×51	High Damage	Reliable performance with M62; solid build ceiling.
A	DT MDR 7.62	7.62×51	Bullpup	Budget-friendly, controllable, excellent for tight corners.
A	AK-74N	5.45×39	Versatile	Best suppressed option for patient, tactical angle-clearing.
B	MP5	9×19	Budget CQB	Use 9mm AP. Disciplined play required; struggles vs T5.
B	AKM	7.62×39	Workhorse	Okay for outer decks. Avoid boss room without high-pen ammo.
C	Vepr Hunter	7.62×51	Semi-Auto	Wrong tool for the environment. 10-round limit is a liability.
D	UMP-45	.45 ACP	Early Wipe	Irrelevant against geared AI; punishingly weak penetration.
F	Pistol / Bolt-Action	Any	Suicide	Do not bring to a multi-deck ship engagement.

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Ammo Priority

On the Boreas map Tarkov ammo meta, armor penetration decides everything. Wedge's crew runs Tier-5. Bring rounds that punch it or don't board. Class 6 armor shrugs high-pen ammo once or twice before it degrades: stack your magazine front-loaded with pen, filler in the back.

Caliber	Round	Pen	Damage	Verdict
6.8×51mm	AP	47	72	Best in game. Use it.
6.8×51mm	FMJ	36	80	When AP is dry. High damage compensates.
5.56×45mm	M995	53	40	Top 5.56 pick. Punches T5.
5.56×45mm	M855A1	45	47	Accessible, reliable. Strong A-tier.
7.62×51mm	M62 Tracer	68	71	Devastating. SCAR-H and MDR.
7.62×51mm	M80	47	83	Workhorse. High damage, solid pen.
5.45×39mm	BP	52	46	Best AK-74 option. Good access, punishes T5.
5.45×39mm	BS	59	38	Overkill pen, low damage. Late-wipe choice.
.45 ACP	PBP	42	63	Vector's reason to exist. Use it or don't bother.
9×19mm	9mm AP	35	62	Usable. T4 ceiling. Manage expectations.

Magazine top-loading: run 5–8 high-pen rounds first, filler behind. First burst matters most in CQB. The Boreas crew does not give you time to finish a magazine gracefully.

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Armor

This is the part where you have to make peace with losing something. Tarkov Icebreaker armor choices are a risk calculus, not a fashion decision. No insurance means no recovery. On the other hand, underprepared armor gets you killed in the first corridor.

Tier	Armor	Class	Weight/Style	Key Tactical Notes
S	Slick Plate Carrier	6	No Penalty	Best in Slot. Essential for surviving Wedge's AP ammo.
A	Redut-M	5	Heavy	"Tank" build. Use the free promotional copy; movement penalty negligible in tight corridors.
A	KITECO SC-IV SA	6	Light	Pair with Class 5 back plate for stamina. Ideal for holding angles.
B	IOTV Gen4	4/5	Balanced	Good mobility/coverage compromise for medium-value runs.
F	No Armor / Class 2	2	N/A	Instant failure. You will be one-tapped by Wedge's crew.

Budget Runs

Not every raid on the Boreas needs a 500k kit. Budget Tarkov loadouts for Icebreaker are valid when you're completing Boreas questline steps or mapping the ship. The 400k transit fee is already painful. Losing a 350k kit on top is a full therapy session.

AK-74N + BP ammo + IOTV Gen4: ~100k weapon, serviceable armor, ~50 pen. Survivable. Recommended for first two or three visits while learning the layout.
DT MDR 7.62 + M80 + budget chest rig: ~150k total. M80 punches Tier-5 adequately. Bullpup profile helps in corridors. Minimum viable aggression.
MP5 + 9mm AP + Redut-M (free via promo): Near zero weapon cost. Free armor. Use this for your first Icebreaker run, accept the ammo limitation, learn the map, upgrade next trip.
Saiga-9 or PP-19 Vityaz + 9mm AP: Factory-tier SMG budget. Works on outer decks. Do not take this into the keypad section without a death wish and a narrative arc.