not every ball is a keeper error, what if the attacker is just that good and the keeper can't react in the tenth of a second that he gets before the ball goes in, but still reacts and is just late; i'd say it's the attack just being better than the keeper, no errors on either side D:
and missed shots as a tactic all depends on whether it's VO or real DB, the map, and how far the player is from the net; if the player is close to the net and shoots at the wall, he's setting up a wallvolley, and not missing a shot because he was never aiming for the net in the first place
so technically, there is no "missed shot" tactic, because you can:
1) shoot at the net, resulting in a save or goal
2) aim for the net, miss
3) setup a teammate off the wall, which would work maybe 1 out of 20 in a real DB match, maybe 1 out of 2 in VO
4) shoot the ball low on the ground, not hitting the wall, to setup a volley, which works alot, at least on my nub arse
5) remember that there is actually a pass button, and setup volleys (europeans rarely do this on offense, one reason why their games are 2-1 or 3-2 unless the defense\keeper is shit, they must like to play DB like real soccer
, but NA uses it alot, which is why most of our games have like 15 combined goals)
maybe group them a bit more 