In 1993, Mo debuted alongside Mabel in the World Wrestling Federation (WWF) as faces with a rap gimmick. They wore bright clothes and had positive attitudes. They were teamed up with a rapping manager Oscar, and the team name became “Men On a Mission” (or M.O.M., the initials of the three men). The team met with moderate success in the ring but got over mainly due to Mabel’s unusual size, their fun loving personas, and Oscar’s crowd pleasing raps. Their fun loving personalities were prominently displayed when they appeared at Survivor Series 1993 dressed up as Doinks (referred to by color commentator Bobby Heenan as “Doinks on a Mission”) and teamed up with The Bushwhackers (also dressed as Doink) in a comedy match.
Their next feud was against the WWF Tag Team Champions The Quebecers and they even won the titles during a United Kingdom tour. Two days later, the Quebecers regained the titles in a rematch. While the title change was reported on WWF television, the fact that Men on a Mission were former champions wasn’t something that was mentioned in the future. In the summer of 1994, Mabel started to wrestle more singles matches; he was seen as the spectacle of Men on a Mission due to his size, the “special attraction” that got used to make rising stars look good. It wasn't until the early parts of 1995, that Men on a Mission started to team again on a regular basis.
One night after another loss, Mabel and Mo attacked the Smoking Gunns in a fit of anger, then apologized for it later on. When they asked the Gunns to come to the ring to let them apologize, Men on a Mission attacked them once again and then beat up Oscar, turning the duo heel and dropping their rapping manager.
After a short feud with the Smoking Gunns, Mabel won the 1995 King of the Ring tournament. He became King Mabel with his trusty sidekick being dubbed "Sir Mo", wrestling royalty. When Mabel became king, the focus shifted from the team to Mabel once more with Sir Mo acting more as a manager and less like an active competitor as Mabel challenged for the WWF Championship. One of the last notable appearances for Men on a Mission was at In Your House 2, where they beat Razor Ramon and Savio Vega. They were also the opponents in the match where the British Bulldog turned on partner Diesel. Mabel and Mo's last appearance in the WWF together was at the 1996 Royal Rumble, where Mo accompanied Mabel at ringside, while he participated in the match, until he was eliminated by Yokozuna. Afterwards, they left the WWF.
While still under contact by the WWF, Mo worked under his real name in World Championship Wrestling on March 25, 1995, as a jobber teaming with Barry Houston as they lost to Bunkhouse Buck and Dick Slater on WCW Saturday Night.
Mo returned to the WWF for one night only as Buzz on September 6, 1997, beating a jobber at a house show in Nashville, Tennessee.