I saw there are small data of it but to be honesty I doubt Guadalcanal campaign is possible… There’re too many problems.
Japanese didn’t had decent armored vehicles not only in frontline but also mainland’s factory. For example, more modern Japanese AFVs like Type 1 Chi-He (47mm AT gun& 50mm armor), Type 1 Ho-Ni I (SPG with long 75mm cannon), Type 1 Ho-Ni II (SPG with 105mm cannon), and Type 2 Ho-I (75mm mountain gun & 50mm armor) were labeled Type 1 (M1941) or Type 2 (M1942) but production was started since 1943-44 so during the battle they were not existed in the world.
Infantry weapons also have problems. In case of SMG, there were only a few early production model of Type 100 SMG in there. Different to other islands captured by early of war, Japanese didn’t captured various Allie’s infantry weapons so it is difficult to implement them. Even if included naval SMG which would not be in Guadalcanal, they’re only two (SIG-Bergman M1920, Steyr-Solothurn S1-100) so it will not enough for game… (it is common problem among early war campaign)
Other SMGs like Type 100 special, Type 100 late, experimental model 2 (it was not adopted but it was mass-produced at the late of war) appears since 1944-45 so we have to implement multiple prototypes.
More serious problem is semi-automatic rifle. Japanese only-one mass-produced semi-auto rifle, Type 4 automatic rifle (IJN) was mass-produced in 1945, so possible addition is only prototypes or captured things… Of course, both prototypes and captured rifles from Philippines etc was not exists in Guadalcanal.
Battlefield also have problem. There are only deep jungle and wide beach which become killing field by American machine guns and cannons. I think it’s boring because it lacks diversity of types of map.