Need help learning how to maintain argo

[Kaitlen]

At your level, just grab the best sword that you can afford either from the market board or dungeon drop.

Basically, it's a just rotation of Shield Lob (pull) > Flash > [Combo] > [Combo] > Flash > [Combo], etc.

If you have multiple mobs, you may want to mark the mobs with numbers to remind DPS to focus on each specific mob in order.
Otherwise, you will need more flash and switch mob to mob to keep hate generation.

When I was at your level, I would say, pull 3 mobs.

1. Mark Them 1, 2, 3, with a simple macro < > Or Shield Lob the first one, then mark.
2. Use Flash > Combo on Mob #1
3. If needed, switch to Mob #2 and [Combo] as needed.
4. Repeat for #3 and so on.
5. Use Flash to support your group hate as needed; just keep an eye on your MP.

If DPS is spread out among two mobs, it will take you more effort to maintain hate.

Prepare yourself mentally and gear wise for Brayflox's Longstop ~level 32. That is by far one of the most challenging dungeons for a new tank. You'll at least have Sword Oath at level 30.

Edit:
[Combo] = Fast Blade > Savage Blade

At level 26 and after:
[Combo] = Fast Blade > Savage Blade > Rage of Halone

Edit #2:
Others mentioned this below and I forgot to mention it: I've got a pull Macro set up to automatically fire off Fight or Flight follow-up by a Shield Lob which is just to enure that I've fired off Fight of Flight at the start. Regarding flash, usually pop 2 flashes at the start once I know I've got the basic attention of the mobs. Then, move into to the hate building rotation I mentioned above. You will have cases of a well-geared player (DPS) who can pull hate pretty easily; just watch your aggro bars in the party list. Throw in an extra Rage of Halone on the problem mob or Flash where appropriate to help get some hate back. Lastly, you can use you saved Provoke for those urgent cases to pull hate back. ... I die a little inside everytime I see a tank try to pull with Provoke, this isn't FF11.

[PogueX]

My gear is pretty much the gear that i have earned in dungeons and quest up to now. I am a blacksmith though, so i plan to level that up for awhile. Not really sure how to mark a target,

i usually do this for a rotation

Fight or flight
Shield lob
Flash (when mobs are close0
Fast blade
Riot blade
Flash
Fast Blade
Riot blade

I also have sword oath from the paladin job class on

that doesn't really work well. Should i instead be building up a combo? And also at times flash will not argo mobs, they will instead continue attack the other party members or go pass me even though i was in the AOE range. It becomes difficult especially when other members are not attacking who i am attacking.

[Garlyle]

that doesn't really work well. Should i instead be building up a combo? And also at times flash will not argo mobs, they will instead continue attack the other party members or go pass me even though i was in the AOE range. It becomes difficult especially when other members are not attacking who i am attacking.

You absolutely should. To quote a friend of mine: Riot Blade should only be used in very specific cases when you know you need the MP recharge (eg "there's going to be more adds coming and oh shit I'm out of MP"). Your combo should absolutely be Fast Blade > Savage Blade > Rage of Halone

Flash generates decent enough aggro to mostly handle casual aggro, but it's not going to stand up against a good DPS' aggro generation by itself. With Shield Oath up your Rage of Halone will generate something like 8-9x the amount of aggro Riot Blade does, if I'm remembering the aggro multipliers right. Even without it it's still about 6x as effective.

I personally pop Flash twice at the start, then go straight into spamming my 1-2-3. Rotate targets occasionally (especially if DPS have decided to divide up their targets) and throw an extra flash if more mobs join the fight or it's starting to go on, but mostly rely on Flash for initial aggro and then your 1-2-3 to maintain it.