I hate to burst your bubble but Mercury never 'made' the force.
Oh yes they did, Chrysler sold the engine line to Bayliner, who I believe are the ones who gave it the Force name. They wanted low cost engines to factory rig their boats.
Then, when Brunswick purchased Bayliner, these probably unwanted, and mostly obsolete, engines came with the deal.
"Mercury decided to spruce them up and improve them, with Mercury gear cases/props, CD ignition systems, etc., and market them as 2nd tier engines. They were actually pretty good, but not really hot performers and with a second tier, "cheapout" image for the owners. The situation spooked Yamaha and OMC enough that they downgraded their own lines, removing oil injection and other items, so they, too, would have a second tier line. OMC called them the "Special" engines, with odd ball HP number to set them apart. Yamaha had a designation for theirs also. As clean technology became mandated, this engine had to die, so Mercury dumped it in favor of putting Merc engines on Bayliners, and all their other brands also." Mercury started manufacturing these in 1986 and stopped in 1999.