Natural Selection 2

Natural Selection 2

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Dec 10, 2017 @ 6:54am
Dec 22, 2022 @ 2:38am
1376 Change Notes ( view )

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mod id: "492b5592"


The Sentinel mode has been designed as a training for marines, where they can practice the following:
* Practicing the aim (straffing / dodging / leaping bots)
* Practicing target priority (who to shoot first)
* Practicing positioning (placing yourself correctly to defeat skulks when outnumbered)
* Practicing teamwork and covering fire
* Practicing the objective nature of the game (killing has no impact, marines have to focus on the objective to progress)


Marines start at a randomly choosen techpoint on the map with a minimal base. An advance base is also created with an armory and a phase gate.
Aliens start with several egg nests scattered around the map, and a base containing upgrades.

In order to win marines have to complete 2 objectives:
* Kill all the eggs on the map
* Power and use the phase gate behind the alien lines.


The gamemode provides 4 setup: Easy, normal, hardcore and suicidal. You can see in which setup the gamemode is running by checking the name of the bots, the top left of your screen or the lighting of powered off rooms. (blue for the easy and normal setup, orange for hardcore and pitch black for suicidal)

EASY (Base AI)

This is the default setup when changing map. The bots do not work together, react slowly and often miss multiple bites. They will sometime try to ambush but lack the skill do to so. This setup is basically a warmup and an aim practice. The lights are blue.

NORMAL (Nerfed Hardcore AI)

This setup is a bridge between easy and hardcore. The bots will start to work together and will have more combat capabilities. You won't be able to go on your own anymore without decent combat skills. This setup is good enough
to train everything without too much challenge. The lights are blue.

HARDCORE (Full AI version)

The hardcore version contains the full content of the AI. Expect aliens to scout, patrol, parasite, bait, retreat, ambush, and pack up massively, the bots react quickly to any threat or sound nearby and can only hardly be beaten with force. For this you will need to outsmart and bait the AI out of the defended eggs to have a chance.

SUICIDAL (Ultra angry AI)

This setup is not intended to be played and won. Bots here never miss a bite, they can hear you throw half the map and will never retreat. They will also spawn a lot faster than there hardcore counterpart. For each skulk killed, an egg is spawned closer to the marine base to increase even more the pressure. If that was not enough already most of the skulks are enzymed, they will use xenocide and have a chance do drop an umbra+sport cloud upon death.
o'_'o小褲褲狂魔歐尼醬Tav Dec 27, 2022 @ 12:54am 
hi, cant buy Railgun Exosuit, if i buy railgun exo will get Minigun Exo :teslacat:
Katzenfleisch  [author] Dec 22, 2022 @ 2:49am 
Fixing done for it to work with the new build on ns2_range
anubis May 28, 2019 @ 5:17am 
Aw yiss, Sentinel.
Katzenfleisch  [author] May 12, 2019 @ 3:26am 
Mod updated :D, better AI and lots of issues fixed.
𝅳𝅳𝅳𝅳𝅳𝅳𝅳𝅳 Jan 2, 2018 @ 3:39pm 
Really fun
Katzenfleisch  [author] Dec 14, 2017 @ 8:44am 
I added it to prevent bots to harass the base while marines are out, and give an other incentive for marines to just camp. Now the bots are only focusing players it will get disable.
CHAO Dec 13, 2017 @ 5:08am 
Saw a passworded server with the mod a couple of days ago. Soft death means basically marines cannot lose, or am I wrong?