Well, forget what I said. I just achieved a cross kick and I've got to say it's pretty satisfying when it works so well.
Cross kicks are a possible thing, and they're quite easy to achieve if you use the following settings:
- Deep positioning. Obviously your first receiver will be subject to a lot of pressure if he is too flat behind a ruck/maul/scrum/lineout. You want to put him deeper, especially against a rushing defense.
- Wide positioning. You can't really control the positioning of each and every player, but a wide line of attack will ensure that your wings aren't marked.
- Use a punt and not an up and under. While a bomb allows you to follow the ball in order to catch it, your opponents will also be able to regroup under the ball to contest it. Trust a low trajectory kick to beat the man.
- Easier done when many players are involved and massively gathered at a certain location on the field, so don't hesitate to commit lots of players to the ruck.
- A first five (or first receiver) who has a good boot. Maximize the odds by increasing your general kicking stats.
- You also have to pay attention to the defensive patterns of your opposition. Either notice how they work in each zone (defensive zone, mid-zone, attacking zone) or just have a look at their tactics. In-game vision should be the most important thing though. Just a quick look at mismatches or huges gaps in the defense will enable you to act accordingly. Just like real life though, defenses will generally be tighter when they defend in their 22. This is when you want to go for the jugular.
Train hard and enjoy!
PS: Sorry for the poor vid quality. I don't know how to capture in-game videos.