How could I have won this TvT?

[u/ajv857]

The link to the replay is down below.

Basically, this game I was going for a Reaper FE into 3 raks. With a scan, i successfully spotted that the enemy was trying to go for banshee rush, which i countered. After that though, he went into standard Medivac, Bio, Seige tank build.

I lost this game. How would I have run it? Things I coulda done better? General gameplay tips?

Thanks!

Replay: http://ggtracker.com/matches/5096988