Last War Frontline Breakthrough: How to Clear Levels 1 to 5

To clear Levels 1 through 5 of the Frontline Breakthrough event in Last War, prioritize multiplier gates over flat unit additions in the first three stages, and shift lanes early to prevent unit loss before reaching stage obstacles.

Early Gate Priorities: Multipliers over Additions

The opening three levels serve as a buildup phase where squad density dictates overall survival. Selecting the correct gate types early ensures your squad is large enough to absorb damage in later levels.

Prioritize Multipliers: Target gates offering x2 or higher unit multipliers whenever available in clear lanes. Multiplicative growth scales squad numbers faster than flat additions.
Choose Quantity Over Tactical Buffs: Unless your current unit headcount is already sufficient to break through heavy hurdles, choose gates that add raw unit count over gates offering tactical buffs.
Assess Lane Costs: If a high-value multiplier gate is placed behind heavy enemy resistance or high-damage hazards, calculate the expected attrition. A smaller additive or lower-multiplier gate that preserves unit health is preferable to taking severe losses for a high multiplier.

Navigating Levels 4 and 5 Hazards

Difficulty increases significantly in Levels 4 and 5 due to tighter paths, elevated enemy counts, and specialized stage obstacles.

Shift Lanes Early: Begin moving your squad toward the target gate as soon as it appears on screen. Waiting too long causes trailing units to wander into dead zones, traps, or negative gates.
Avoid Cluttered Zones: Pick lanes that provide clear sightlines to upcoming gates and bypass projectile concentrations or environmental traps.
Prepare for the Stage 5 Bus Obstacle: Level 5 introduces the bus obstacle. Build maximum squad density prior to this encounter so your team can destroy or bypass the roadblock without wiping out your remaining units. If your squad size is low approaching the encounter, pick the path that offers immediate unit replenishment immediately beforehand.

Decision Matrix for Event Levels 1–5

Use this comparison to evaluate choices during a run:

Scenario	Recommended Choice	Alternative Choice	Selection Rule
Early Gate Options	Multiplier Gate (x2+)	Additive Unit Gate	Pick multipliers early unless heavy hazards block the path.
Squad Upgrade vs. Buff	Raw Unit Count	Tactical Buff	Choose unit count until your squad easily clears basic roadblocks.
Risky High Multiplier	Safer Low Multiplier	High Multiplier behind Traps	Take the safer route if the higher gate causes severe unit attrition.
Stage 4–5 Obstacles	Early Lane Adjustment	Late Lane Shift	Adjust lane positions ahead of time to keep trailing units intact.