Exactly! So many cool things in a free game, incredible!
And yeah, they most likely keep it f2p but hard to get credits for the sake of making people buy some of their loadouts or characters but with a little effort you can get them without spending any money. Thanks for the tip about training mode!
There are still more maps than some other shooter games but some extra ones alons with more game modes would be great indeed. Who knows but I do expect to see this game having a boom one day and become very popular. It definitely deserves it :)