I found a few more bugs...

Alright, Let's just work here instead of maintaining multiple threads, if that's cool.
You were right reporting them separately - No criticism...

I'll make a list and address them bit by bit.
Some might be considered non-issues, some might be that's how it is, some might be problems I can fix....but we'll address them all here if that's cool.

1: Biome NPCs and their behaviour near safe zones
    I think this is a 'that's just how it is' one.
    The behaviour you're describing is as-intended so I think the suggestions would be

• Embrace the chaos
• Make that Biome peacekeeper:true, so they suit the safe-zone environment
• Turn that biome off and replace it with a custom profile with custom spawn points, and ensure the custom spawnpoints avoid the safe zone.

    The exception to this would be if the npc's are gathering, due to a player interest, and then refusing to disengage and just getting stuck at safe zone.
    If that's the case please let me know and I'll look into that.

2: MLRS governed by PVE_Safe setting.
    Are you certain? MLRS  is definitely killing BotReSpawn npcs over here, whether PVE_Safe is true or not.
    The PVE_Safe rule would come in to player if initiator is unknown, but initiator is known.
    MLRS is manual, player controlled only, right?
    If there's ai controlled/automatic/plugin controlled/remote MLRS somehow, I can add an exception to cover it.

3: Errors with parachuting scientists
    Testing here with about 20 parachuting npcs, reloading while some have landed and some are still falling.
    No issues seen, so far.
    Can you paste the specific error?
    If there's a lot, feel free to IM me a log file.

4: ai.addignoreplayer not working with BRS installed.
    Issue found and fixed, for APCs. Thanks for flagging that.
    Can you elaborate on "Same applies to the bots, they don't obey the command either."?

    The convar should not affect BotReSpawn npcs - That's expected.
    BotReSpawn isn't affecting vanilla npc behaviour but do not that if a vanilla npcs is hostile to you and then
    you use ai.ignoreplayer YourName, that npc will remain hostile.

5: Samsites/APC shells/splash doesn't interact with BRS npcs
    Issue found and fixed.
    It related to Timed Explosive/ServerProjectile rather than anything APC specific,
    so it may solve samsite issue too (untested).

6: Add increment UI option for number up/down adjustments.
    Done. 1/10/100/1000 selector in profile settings pages.