*[[Anti-Installation#Damage Bonuses|Grants a flat 75 firepower bonus against installation type enemies]], in contrast to how [[Type 3 Shell]] behaves (2.5 firepower multiplier).
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* Grants [[Anti-Installation#Damage Bonuses|bonus]] against installation type enemies.
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**Subsequent WG42s will encounter diminishing returns (two WG42s on one ship will only confer a 110 FP bonus
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* There is an unique attack animation when a ship equipped with WG42 attacks the appropriate target.
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**This bonus is not affected by the firepower modifiers of the Type 3 shell
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**The WG 42 also confers a post-cap bonus against certain types of enemies, such as Supply Depot Princess <ref>http://wikiwiki.jp/kancolle/?%C0%EF%C6%AE%A4%CB%A4%C4%A4%A4%A4%C6#antiground</ref>
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**Unlike Type 3 Shell, there is an unique attack animation when a ship equipped with WG42 attacks the appropriate target.
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*[[Akitsushima]] cannot equip it, despite seaplane tenders being listed as capable.