What field unlocks?

[GRAMS]

What unlocks do any of you guys think there will be? I saw an interview with some one from Splash Damage and they said that there will be unlocks ingame and there is one that is an engi tool were u can throw it down and it will atomaticly repair vehicles. So what other unlocks would you like to see in this came but keep in mind this is not like BF2142 were you have to unlock everything...but they are more like field upgrades than true unlocks.

[GoatStar]

I think the unlocks (or class upgrades) will be mostly like ET,that is abilities to perform a task better.I am pretty sure we will have levels that a player will need to achieve withing the campaign that make him do things better pertaining to his class.For example Level 4 medic on ET gives you adrenaline,Level 3 gives you full revive etc.I'm sure they'll throw in a unlock or two there,but the main weapons should be available all across.