Yes, its design only plane

Hello! Im showing you J6K1 because why not

The Kawanishi J6K1 Jinpu ("Squall") was an interceptor fighter design developed by the Japanese company Kawanishi Kokuki KK in the early 1940s. It was based on the earlier Kawanishi J3K.

The J6K1 was an improved version of the J3K1 with a more powerful engine. Instead of using the Mitsubishi MK9A, it used the Nakajima NK9A Homare 42 engine. The design reached the mockup phase, but not long before the worsening war situation prompted its cancellation in 1944.[1]

Ag1 - Openable canopy
VTOL Down - Flaps

1st - Livery based on this photo:

2nd - No, its dont have more guns because blueprints lol. If you need it then here you go

3rd - I forgot.