Note: this guide might be updated once in a while.

1. Have the right gears. Sure some players can do trinity without legendary parts (gluttony, autoloader and grenade launchers, among others) but keep in mind that as a noob, you might need to use those parts. You can get those legendary parts from Abyss stages and Ghost Ship. How to get those? You may ask. With the help of other players (carry), by participating RE net events (google for more info) or by trinitying the stage yourself, which is maybe the main reason why you clicked this guide.

2. Do a few full run first. Running a full run of the stage you wanna trinity gives you the whole picture of how the stage look like and the spawn patterns.

3. When u are ready for trinity, try to break down each area and see to it that u get no damage. That's it for now. For example, in Ghost Ship you wanna aim for no damage in 1st room, then in the kitchen, then in casino, so on and so forth.

4. After you are starting to get no damage, you might wanna practice the area you are having trouble to get no damage. When you can get no damage in all areas, that's where trinity is at least 90% possible (with 10% for RNG, ie: where u got hit randomly outside the practiced run). For example, for Ghost Ship you have trouble with the Bridge, so you might want to take the route that leads there in shorter time and do a short run until you master it and take no damage.

5. Learn the spawn pattern in each area. This is super important. Once you get the enemy spawn patterns, the chance of getting trinity becomes higher.

6. Always practice the last phase. This is important in each stage. You don't wanna master the whole area only to get hit in the last phase of the enemies in each stage. For example, Ghost Ship deck fight. You need to practice it separately. You can master it after you already mastered other areas, or you can choose to master it then the other areas next. I strongly recommend the 1st one.

7. Learn the basics of subweapons. Learn how to use them correctly. Handgrenades for Draghignazzo, Bow decoy for Humanoids, dogs and fishes, Pulse for Hunters, Scarmiglione, Mermaids, Wall blisters and Humananoids, and Shocks for fishes, Wall blisters and Scarmigliones.

8. Kill the priority enemy 1st. Tricones and Wall blisters should be killed 1st, then hunters, dogs and fishes next, then everyone else. Of course you should kill the one gets close to hitting you, and also speed icon enemies should be killed 1st as well. Always kill the weaker ones then stronger ones next. Always save the guard icon enemies for last because they are slow.

9. You don't have to trinity the stages before going to the next stage. The 1st thing you wanna get is the gluttony 2 or 4 and autoloader 2 and 4 on Ghost Ship, so try to farm the side deck area until u get it. You can use handgun, shotgun and rifle with ammo magnet, and you might need to knife weaker enemies to recover ammo. I also recommend machine gun. Here is an example of farming at Ghost Ship's side deck using weapons from the store. At level 40, you can start farming from Ghost Ship (don't be scared! :D).

https://youtu.be/_VVUB2S3G3I

You can still farm side deck route for better weapons and parts (for example, you need autoloader 4) even if you got gluttony 2 or 4, but in any case, this video run shows how to farm on side deck:

https://youtu.be/-3LX0j_NhM4
Credit: hunter_y
https://sp.zhabite.com/profiles/76561198057879401/

10. Do you need cornucopia 3 to beat Ghost Ship in short run? Actually no. Once you got gluttony (preferably 2 or 4) your ammo problem will be solved. You can beat Ghost Ship on short run using only handgun and shotgun with gluttony 1/autoloader1 and gluttony2/autoloader 2, respectively, like this one:

https://youtu.be/Ms4WOkihpO0

You can also do a full run without cornucopia 3:

https://youtu.be/_HZtNWMlj_I

Or short run without legendary parts

https://youtu.be/WVaCTSPxsNs

Or full run without legendary parts

https://youtu.be/tNJLdP_sEvY

Keep in mind that no legendary parts run are hard and required skills even for farming only (not trinity) so I don't recommend it.

11. Keep farming Ghost Ship until you get better weapons. Then go back to Abyss 19 to get cornucopia 3. You can use rifle to trinity Abyss 19 like this one:

https://youtu.be/Z1Zk-xcA_iI

12. After getting cornucopia 3 and a decent main weapon (preferably PSG1 if u have gluttony 4 and autoloader 4) you can now try to trinity Ghost Ship. Here is an example:

https://youtu.be/GaPqUMcCTnw

Note: despite having cornucopia 3 and ammo magnet and still you find yourself getting short on ammo, you can wait for ammo recovery before proceeding to the next area. However, shortage on ammo means that you need to farm better weapons first and be mindful of the ammo you spend on of shooting enemies. Always use burst 2 or 3 to avoid ammo shortage especially on full run in any stage. But most likely you will encounter ammo shortage on Ghost ship due to lack of ammo drops. In Abyss and lower stages, there will be no ammo shortage if you have gluttony. But then again it depends mostly on your weapon.

13. Getting gluttony 5 from Ghost Ship trinity can give you higher chance to trinity all other stages that you haven't done. But you can use gluttony 4 as well.

14. Congratulations! You can now trinity all stages even if you are a noob :)

I think everyone can trinity most Chasm stages without the need for legendary parts or powerful weapons. In this video guide below, I was able to trinity all stages without legendary parts except stage 15, 17 to 19. Unfortunately, I failed to get S rank on stage 8 (not that it matters tho coz it's way easier to get S rank than trinity).

https://youtu.be/IYymD2M5VwY

Here is my compilation of Trench trinity using PSG1 and Windham. Note however that Trench 1 and 2 were done with M3 instead and unupgraded weapons (and no gluttony yet) bcoz after those two stages, I didn't trinity Trench 3 up to Abyss 20 until I got better weapons and parts from Ghost Ship. The whole process will be explained in my next guide: "How to beat the whole raid mode on solo".

https://youtu.be/iQAbdWw_KkM

Here is my compilation of Abyss trinity using PSG1 and Windham:

https://youtu.be/bT_u1Pcg8ho

Here is my tutorial if you got gluttony 5 and magnum:

https://youtu.be/8Q7DpHrFQQA

Here, I'm using Parker's government handgun and Revelator. You can use other handgun if you want. This run is useful if you only have gluttony 1 and autoloader 1 and want to trinity Ghost Ship. It is doable.

https://youtu.be/2LTay3O5G9Y

This is done on PC with the mod from Commander Fox. Needless to say, you need gluttony 5 and powerful magnum if you are a noob like me. :D

https://youtu.be/Z95VCTDyP8g

Even though not officially recognized by the community, but considering that there's a bunch of players who already tried this mod, I decided to include it. First of all, GS Nightmare, unlike Chaos on console version, isn't meant for trinity. The reason being is that the same gives the trinity player gluttony 5 as reward (just like Chaos mod and of course, the legit vanilla version of Ghost Ship), so therefore, doing trinity on Nightmare mod is pointless unless for a challenge and fun :). But for a few challenge seekers (including me, lol), here is the sample run that you can watch if you plan to trinity it. Only version 0.23 and earlier can be possible to trinity, bcoz version 0.26 and 0.29 have some added difficulty changes like twin Normans and twin Ghost Normans at deck fight, which makes it virtually hard to trinity. Separate guide might be written sooner or later about this mod.

https://youtu.be/92HoV0Im0Ck

That's all there is to it if you want to trinity the stages. As for doing trinity without gluttony, autoloader, cornucopia or grenade launcher, I recommend search Youtube like "no legendary parts gstb" or "abyss trinity no legendary parts" for more details.

Chao.