Spitballing here...
"Noah's Arks: You must equip weapons (including bombs and missiles) in pairs of 2. If there is only space available for 1 weapon, then you cannot equip it."
The idea is a nerf to smalls (particularly bombers) by delaying their armanent rollout of recent (larger) tech. Two isn't that special. Could be 3, 4, or 5 as needed for difficulty. The larger the 'pair' the more reliance on larger ships.
"Noah's Arks: You must equip weapons (including bombs and missiles) in pairs of 2. If there is only space available for 1 weapon, then you cannot equip it."
The idea is a nerf to smalls (particularly bombers) by delaying their armanent rollout of recent (larger) tech. Two isn't that special. Could be 3, 4, or 5 as needed for difficulty. The larger the 'pair' the more reliance on larger ships.