how would you change at least 2 of your mains perks?

I don't care if you like them how they are, you need to change them, while keeping it balanced. Can be big or small.

For me, my main is soldier.

I would make agility let him run in all directions, not just forward, but at a reduced speed bonus from forward. I would also make agility automatically start you reloading if your gun is not full, just something to make me think about less in a match.

I would fully change stim pack. instead, it would big increase the size of biotic field, and everyone in it gains a much smaller version of stim pack, without anti heal.

I would change the 1st perk biotic field to just heal teammates a bit faster in general

I like the rocket one, but if I was forced to change it, make rockets weaker, but the cooldown is 1/4 the time and can be held

The second idea I had seems like it needs work, so any ideas would also be nice.