Me personally, yes i will use the in game VOIP, if the team im on are already working together and have a good majority of decent players.And as i play on the same few servers i usually know this just by seeing names on my side.
In my opinion the game really comes alive when BOTH teams are using team work and coordination to win and out flank the enemy it just plays out totally differently to a game when one or other team is just looking to get kills.
And is in all ways more fun and intense an experience than the usual camp fest k/d whore type of fps games when played as a team with even basic coordination.Its how the game was meant to be played i feel.
Played my first online battles tonight and agree with you. This game is very unforgiving and team work and cohesion are essential. I want to try a serious gaming group for this game. Definitely getting a headset soon too.
On a server tonight people were just run and gun and gotboring quick actually.