O-I

Chi-Nu 26 950 410 000

O-I 26 950 950 000

O-Ni 56 320 1 490 000

Tank description:

The O-I is a Japanese tier 6 heavy tank.Development of the superheavy tank was started after the Battles of Khalkhyn Gol in 1939. The vehicle was designed as a maneuverable fire unit that was unprecedented in scale—its hull alone weighed 100 tons. Only one prototype was built, without a turret and made of construction steel. Trials were discontinued due to the unreliable engine; at the end of 1944, the prototype was scrapped. The 15 cm howitzer was to be mounted on the tank after its assembly.Also known as Derp Demon. The O-I is basically a KV-2 on steroids. Not only does it carry the most powerful gun of its tier, the O-I also sports some of the toughest protection in tier 6; it easily can hold itself against tier 7 tanks with its thick armor & raw firepower. It had two gun choices; a powerful 10cm AP gun with high penetration and a trademark 15cm "derp gun" with insane alpha damage. The O-I has the similar distinctive look like it''s brother "O-I exp" and offers a unique, fun play style with it''s Insane armor & raw firepower. However, like every Japanese heavy tank after tier 4, it is huge and massive (even larger than most of tier 10s) as well as quite slow, and will usually become the primary target of SPGs, gold rounds and flankers. As of update 1.9, the O-I is no longer researched from the O-I Exp. it is instead researched from the Chi-Nu.The O-I leads to the O-Ni.

Development of the superheavy tank was started after the Battles of Khalkhyn Gol in 1939. The vehicle was designed as a maneuverable fire unit that was unprecedented in scale—its hull alone weighed 100 tons. Only one prototype was built, without a turret and made of construction steel. Trials were discontinued due to the unreliable engine; at the end of 1944, the prototype was scrapped. The 15 cm howitzer was to be mounted on the tank after its assembly.