Sound recordings and synching

Hi folks, I’m new round here- greetings from the south coast of England.
Can I ask how folks make their soundtracks, specifically FX- trying to synchronize footfalls, gunshots and anything else that requires being in exactly the right place on the soundtrack has proved quite tricky. I did have ‘Animate It”, by Aardman as my main work tool and that allowed multiple tracks for FX and sound- very handy for placing individual footfalls on separate tracks then mixing down. Ok- this is possible in music software (I use Mixcraft)but I’ve not got anything which will display the video to work to…
Any tips?