Primary Focusing Coils is a technology that can be researched at the War Center in Tech Level 2. It costs 100 Food, and gives +1 attack to all Mech Factory and Troop Center units, except the Anti-Air Trooper. It must be researched before Cooling Sleeves becomes available.

This technology gives a modest improvement, and the fact that it affects so many units is a point in its favor.

"By researching this optimised blaster-firing mechanism, you grant your Troop Centre and Mech Factory units a bonus to their attack strength."
—Manual description

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