As far as Guadacanal, in August 1942, the M4A3 was still a very new tank, in service for only several months. Since most A3s were maintained by the US Army, it might be unlikely that the USMC had A3s at the time of Gudalcanal, let alone in theater.
I'm also fairly positive that the 1st Tank Battalion of the 1st Marine Division was equipped with the M2A4 and M3 light tanks during the August 1942 Guadalcanal invasion.