There are two endings to Saints Row 3, one where you choose to rescue Shaundi, leading to the Gangstas in Space mission, another where you chase after Killbane, leading to the Stag Party mission, and one more tiny mission which is just a piece of dialogue.
It sounds like you pursued Killbane, meaning the missing mission is Gangstas in Space. If you reload the game, you can redo the last mission and choose the other ending, which will give you 47/47.
you can get it in missions or you can do a cheat (saints row two only) so dont keep on trying in saints row 1
west side rollerz are not in saints row 2. its only the brotherhood, the son of samedi, the ronin, and at the end its ultor.
Finish all the Saints Revival missions.
made 4
with your hands
Their are 56 missions includind strongholds
missions that you need to do to gain hoods
you get homies by completing the missions ALPHA.T
He dies during the intro missions.
I only know how to get him in saints row 2 just complete all the ronin missions and when you finish you get Johnny as a homie
Their fate was left uncertain at the end of Saints Row, but they were shown to have survived, in Saints Row 2.
Their are 59 missions including strongholds and secret missions.