Bring a G.E.C.K. to Isaac in exchange for his power armor. Isaac wants me to bring him a G.E.C.K. to study. In exchange, he'll give me his old power armor. I wasn't able to get a G.E.C.K., but DIANA gave me a holodisk with a lot information about G.E.C.K.s. Isaac might accept this instead of an actual G.E.C.K. Isaac said he didn't really expect me to find a G.E.C.K., and he accepted the G.E.C.K. holodisk instead. As we agreed, he gave me his power armor.