Just play a couple rounds as your favorite kit (medic...etc.) and you'll unlock the healing box very quickly. Couple matches tops.
I hear what you're saying, it's just tough to even
pretend to wrap my head around the fact that I'm a Medic w/no first aid or defib. Until I unlock those two things (which are farther than a couple matches away for a player like me who doesn't rack up 50 kills/round) I'm a soldier without a purpose.
I'm the kind of guy who gets more frustrated at the little things that are
supposed to work but don't, than I do at the huge Epic Fails that everyone else rails against. "What? EA servers down completely? Oh well, can't play. <shrug> Dragon Age, here I come!" "What? I
could play but I'd have to play without these Veteran items I've been assured I'd have from the get-go? Raaarrgghhh!!!!" Yeah, I'm crazy. I know. My wife tells me all the time.
With Recon it's super easy to get squad assist points with the motion sensor. Throw them on an objective and you get tons of points.
Trouble with that is, I'd be working towards unlocking mortar strike and another sniper rifle, not the ammo box/med box/defib/repair tool that by rights I should already have (and had from Day One in the Beta). Not to mention that I don't
have the motion sensor because my Veteran status is borked in kit selection.