So, not only in the JP version has this bothered me, due to seeing absolutely no change at all, but this version as well...
Not that "Score" matters much, at least I don't think it does, but clearly, this whole "Contribution" factor is on a "Last hit base". Meaning, the more you end up killing creatures with a last hit, the more points you get.
The contribution is an absolute lie. You can heal, use barriers, etc, etc, on as many towers as you want and still come in last place. Hell, last time I did this (like an hour ago), I ended up in 10th place, yet, I did damned near 50 milliion damage as a Force player. How is doing Damage not contribution? Yet being able to get the last hit on a creature is?
This mission is absolutely broken in both versions JP, and NA, and should see a change. It's not fair that someone who mains a force that does 50K+ dmg per hit, is ending up the lowest on the leader boards. I've tried switching this by indeed picking up crystals, healing towers, and throwing barriers on them, but at the end of the day, if you can spam more attacks than anyone else, (Rangers looking at you, or AIS's), you're on top.
This makes no sense, as last hits contribute to absolutely nothing, other than saying "I got the last hit".
Why this wasn't addressed in the JP version I don't know, and why it isn't now, or at the VERY LEAST, the scoreboard taken down, or removed is beyond me.
In my opinion, if there's a leaderboard/scoreboard dedicated to contribution, it should at the very LEAST, show who contributes the most, not just "Last Hitting" monsters.
Not really sure if experience gain is influenced by this, but me, and my other friends think it's an absolute joke, especially when it's clear as day if the guy who DIES THE MOST if in 1st place, only because they got last hits.