Chuck Schuldiner

The guitar he used for the majority of his career [...] was a B.C. Rich Stealth. Also The Empty Words Project republished an interview with Pit Magazine, originally published in June/1999, Chuck Said: "Well, I really have a simple set up. I've been playing the B.C.Rich Stealth for years now. I have three of them, one is a custom black one that is my main stage guitar, one is an emerald green that is really beautiful, and an old one that I recently stripped down. They all have a fixed bridge"

In this image, Chuck is playing a green mockingbird

Chuck can be seen here posing with a B.C. Rich Ignitor.

Chuck Schuldiner is seen playing an Axtra Prophecy guitar, custom-made for him, equipped with EMGs instead of his usual DiMarzio X2N pickup, as evidenced by the image provided. 

Chuck Schuldiner used the Ibanez RS440 Roadstar II Deluxe guitar during his brief tenure with the Canadian band SLAUGHTER. This is evidenced by a photograph showing a guitar identical to the one Schuldiner is known to have played at that time.