A few questions about details

[Mtext]

Does anyone have an XP table for how much each level costs to reach?
What exactly does each level unlock? What's the pattern for Perks/Weapon-slots/Armory-additions?
Is there a list of all the available Perks somewhere? Are they all available from the start or do some come later?
How does "enemy-sending" work? What exactly triggers it, apart from the PVP powerup?

This forum isn't exactly high-traffic anymore, so not holding my breath for answers, but if anyone has any they'd be appreciated!

[Mysterial]

XP for next level is: 10 * Square(CurrentLevel) + 40 * CurrentLevel + 50
Example: XP for level 3 is 10 * 4 + 40 * 2 + 50 or 170

Slots unlock at 3, 5, 8, 12, and 16. Perks are every third level.

I don't have the perk list handy, I vaguely remember a few having a level requirement, but it's something reasonable - there's no secret super high level perk or anything like that.

Enemies get sent at certain combo levels. Starting at 5, I think.