[Guide] The Current Meta as of 17.4.5

So if you're trying to figure out what to bring where, then you're reading the right stuff. Here's a list of all the meta team configurations in Warframe as of 12.4.5!

Here's a brief overview of the preferred team composition for each of the popular Maps/Game Modes in Warframe along with some build suggestions/notes.

Expect the meta Team Builds for the following:
Trials/Raids - Law of Retribution
EXP Farm - Draco
Defense - Non-Infested
Farming (Resources)
Farming (Credits)
Farming R5 Cores - Triton
ODD (Orokin Derelict Defense)

Trial (Law of Retribution)

Required:

Loki (Prime preferred, Disarm/Decoy and Invis)
-Max Range
-Duration
-Max Energy (to carry)

Mirage (Blind Build)
-Max Range
-Duration

Nova (Slowva)
-Max Duration
-130% Power Str or more

Trinity (EV Build)
-Max Range
-Max Power Strength
-Min Duration (12%)

Optional:

Trinity (Bless Build)
-Max Energy
-Quick Thinking for 99% bless
-Max Duration

Frost (Globe Build)
-Max Range
-Power Strength
-Armor

Vauban (Bastille Build)
-Max Range
-Max Power Strength
-Duration

Excalibur (Radial Blind Build) - Poor Man's Mirage
-Max Range
-Duration

EXP Farm - Draco

Required:

Mesa (Peacemaker Build)
-Max Efficiency
-Power Strength
-Energy
-Duration

Trinity (EV Build)
-Max Range
-Max Power Strength
-Min Duration (12%)

Frost (Globe Build)
-Power Strength
-Armor
-Range

Optional:

Any (leech)

Nekros (Desecrate Build)
-Max Range
-No Despoil

Nova (Fast Build)
-Duration
-40% Power Strength (or at least below 100%)

Defense - Non-Infested

Required:

Mesa (Peacemaker Build)
Trinity (EV Build)
-Max Range
-Max Power Strength
-Min Duration (12%)

Frost (Globe Build)
-Power Strength
-Armor
-Range

Optional:

Nova (Fast Build or Slowva)
-Duration
-40% Power Strength (or at least below 100%)
OR
-130% or more Power Strength (or at lease above 100%)

Any (leech)

Farming (Resources)

Required:

Nekros (Desecrate Build)
-Max Range
-No Despoil

Hydroid (Pilfering Build)
-Low Duration
-Power Strength
-100% or 145% Range

Trinity (EV Build)
-Max Range
-Max Power Strength
-Min Duration (12%)

Optional:

Equinox (Power Strength Buff Build)
-Power Strength

Mirage (Total Eclipse Build)
-Total Eclipse
-Power Strength
-Range

Frost (Globe Build)
-Power Strength
-Armor
-Range

Rhino (Roar Build)
-Duration
-Power Strength
-Range

Loki (Disarm Build)
-Max Range
-Duration

Farming (Credits) - Hieracon

Required:

Chroma (Effigy Build)
-Max Efficiency
-Power Strength
-Energy

Trinity (EV Build)
-Max Range
-Max Power Strength
-Min Duration (12%)

Nekros (Desecrate Build)
-Max Range
-No Despoil

Optional:

Equinox (Power Strength Buff Build)
-Power Strength

Mirage (Total Eclipse Build)
-Total Eclipse
-Power Strength
-Range

Frost (Globe Build)
-Power Strength
-Armor
-Range

Rhino (Roar Build)
-Duration
-Power Strength
-Range

Another Nekros or Chroma (same Build as above)

Farming R5 Cores - Triton

Required:

Frost (Globe Build)
-Power Strength
-Armor
-Range

Nova (Slova)
-Duration
-130% or more Power Strength (or at lease above 100%)

Optional:

Any Damage Dealer
Any Crowd Control frame

ODD

Required:

Equinox (Maim Build)
-Max Range
-Power Strength

Banshee (Sonar Build)
-Max Range
-Power Strength
-Duration

Nova (Fast Nova Build or Slowva)
-Duration
-40% Power Strength (or at least below 100%)
OR
-130% or more Power Strength (or at lease above 100%)

Trinity (EV Build)
-Max Range
-Max Power Strength
-Min Duration (12%)

Did I Miss Anything?

Did I miss anything? Are there any revisions? Please comment below and I may add it to the post (and give you credit for it)!

Thanks for reading!

[Builds] Raid Support Weapons and Companion

So you've done a Trial (or raid) or two and now, you might be wondering what else you can improve beyond your frame to make Trials a bit easier. You're in luck since i'll be tackling that in this post!

I've chosen to tackle, Primary, Secondary and a Companion for the Trial. These are support weapons that you may want to include in your current raid arsenal. Feel Free to mix and match. the idea is to find the builds that will complement your play style.

The Primary: Vectis Prime

Why Vectis?

• First, because of 100% status. Viral is powerful if you need to kill something faster.
• Second, it's hit-scan. This helps with the elimination of the Nullifier Drones in NM. 
• Third, If you play EV Trinity, you might find that the scope helps find EV targets.

Here's the Build I use. With the right shots and procs, you'll be able to kill off the G3 one at a time.

The Secondary: Vaykor Merelok

Why Vaykor Marelok?

• First (again) 100 % status.  Viral is powerful if you need to kill something faster. You can also  use it as a knockdown weapon if you need more CC without killing since it is relatively spammable.
• Second, (again) it's a hit-scan weapon. We really don't like those Nullifier drones.

Here's my Vaykor Marelok Build:

The Companion: Shade (Vanilla or Prisma) or Huras (Kubrow)

Why Shade or Huras?

• Stealth. That chance to live longer is worth it.

That is basically it. You just need to max the stealth ability of your chosen companion, give it some survive-ability and you are set. I prefer Shade since you can remove it's attack precept.

Melee: For Blocking (Optional)

**Thanks for Bryan for the comment. It does make sense although i have not encountered the need yet.

Thanks to the revision of stamina, you can now block/parry and take a little as 15% damage from sources in front of you. Here's a link to the wiki for Melee 2.0. The section on Parrying contains the list of weapons you can choose. I would personally go for a weapon that can block 85% of the damage without channeling.

In case your team does not have enough CC, you can opt to block attacks coming from an enemy.

Why is it optional?
Well, you can just shoot it if it gets too close basically. If it can catch you off guard, it might not have come from in front and hence, cannot be blocked either way.

Notes

Why not Carrier

Very little killing is done during the raid. That's why most if not all the frames used are CC frames. No killing = no loot. Hence there is no need for carrier.

I am not saying that Carrier is trash or for casuals. I love Carrier, but there is a place for everything. I can use carrier during a loot trip (basically all non Trial missions) anyway.

Hope it helps!