Ok, so you want to know how a rival spawns? Follow these easy steps:
Step 1: Find the region you want your rival to spawn in, and go there:
If the active rival stat is 1 or higher, then there are rivals to kill. If not you have to make them spawn:
The region level determines the spawn chance, higher level = higher chance
You level the region up by earning points
Step 2: Shoot enemies
You earn points by defeating robots
You need to earn 1000+ points to get a decent spawn chance.
Step 3: Find a FNIX Tank
Alternatively, a military tank or a FNIX harvester works too.
These have the highest spawn chances when it comes to good loot.
Step 4: Let it kill you
If an enemy defeats you, there is a chance of it turning into a personal rival.
If it doesnt chance:
1: if it’s the only big enemy in the area, leave it and come back later to try this step again.
2: go back there and defeat it to add to the region score.
Chances are that if you defeat robots, a regional rival might appear. This can be anywhere in the region so pay attention! There is a UI popup that tells you of the appearance of a rival, and you also get a change of background music when it happens.
Step 4.5: Let the rival kill you for level ups
If the rival kills a player, it gains roughly 100xp. it needs roughly 500xp so 5 kills to level up.
Higher rival level = higher chance of obtaining an experimental weapon.
Step 5: Kill other machines in the region
The rival also levels up from killing machines in the region. Level 4 is max, and it provides the highest loot drop chances.
Step 6: Defeat the rival
Rivals are considerably tougher than normal enemies. On top of that, any destroyed component (including guns and tick spawners) will regenerate. UNCONFIRMED BUG: Regenerated components might be immortal, needs confirmation.
Step 7: Move to another region
A rival spawn has a 2 hour cooldown, meaning none can spawn in the same region until 2 hours after the last spawned. So move to another location to hit another!
This method isn’t “guaranteed”, just the best way I have found so far
Rivals may spawn from 500 to 2500 score, this is pure RNG and thus you might get unlucky, meaning you have to kill a lot of robots
Rivals do not guarantee a experimental drop.
XP list of enemies (which counts towards either regional XP or rival XP, depending on whether a rival is active or not in said region):
Robot score list:
2p - tick (proto)
3p - tick (military)
4p - tick (FINX)
4p - seeker (proto)
5p - seeker (military)
6p - seeker (FINX)
8p - runner (proto)
10p - runner (military)
20p - runner (FINX)
32p - hunter (proto)
40p - hunter (military)
48p - hunter (FNIX)
64p - harv (proto)
80p - harv (military)
96p - harv (FNIX)
128p - tank (proto)
160p - tank (military)
192p - tank (FINX)