pay attention to things you can punish off. if all he does is “jump back and shoot” and call capcom, then depending on his assist calling pattern, you can catch him with a fuckload of hits since you are using mag.
if he calls assist before u start going in, go vertical s. + dash uf and try to land on his head with kicks.
if he calls assist after u start going in, you can a.) bait his assist and wait for it finish then dash in or b.) ground dash in, block the capcom and sj. and psylocke simultaneously (psylocking capcom to buy time, and sj to prevent him from killing your assist) then you attempt to crossover him. try to be right in front of cable’s face constantly and pressure him so that you can hit both him and his assist b4 capcom can call corridor.
if you dont do it right obviously you will get smacked in the face by his assist or get facewashed by a beam.
remember whatever you are using, if you feel like you are getting trapped and confined, sj to give yourself some breathing room. runaway carefully with your storm for a bit. give yourself time and wait for the right moment to rushdown/hailpunish.
its safest to hail punish a cable/capcom when cable sj shoots and calls capcom at the same time.
its safest to allow yourself a small timeframe of rushdown when you float down oncable and he calls capcom, which then you would pushblock the corridor and rush cable down. if he blocks your rushdown, dont be a retard and keep on going at him in the same direction. At this juncture you can a.) sj back b.) time yourself knowing that he is smacking the assist button frantically now that you are rushing him and jump forward dash over cable and capcom to continue rushing down. c.) suprise him with a grab.
i cannot stress how important execution is with msp especially in matchup like these. the above is just the part of getting to him, what to do after you get to him is entirely another matter.
theres literally hundreds of scenarios that you can have… im merely just outlining some of the things you can do. theres almost always a counter, or a better solution. Game Theory on mvc2 is just a lol. but instead of just giving general advices this is sort of a scenario to visualize a match out. everything that i said happens in just a few seconds of a match, but those few seconds are probably deciding factors of the match. sounds easy on text, but its much harder to do in the game itself.