Possible need for bigger team kill punishments?

While 90% of the players will just be in it to team work and have fun. with the game becoming as populour as it is I fear it's going to attract a lot of bad eggs. My concern is the cost of doing wrong could not be high enough?

Example what stops someone loading In with nothing but a free gun shooting a team mate who has good gear stealing it then using that gear to profit.. Killing the teammate and taking there gear would be cheaper even after the loss of money for the team kill than buying it all yourself. This will especially be true for those later using high level gear. you could take a free gun shoot a team mate running a 15k loadout take the 2k loss for team kill but have a 15k kit in return. Cheaper to steal from a friendly than to buy it.

Maybe there is something in place already I just missed in the alpha test? But with the ability to both team kill and loot your friendly players I don't see how this isn't going to be a possible issue unless I'm missing something.