zipec

You definitelly want to play Rakdos Cackler in an agressive Red deck. In fact he is preferable over Vexing Devil.
In sideboard, try two pieces of Ratchet Bomb.
Burning-Tree is solid in monored, he goes well with Chandra's Phoenix, Lightning Mauler and Gore-House Chainwalker. I would either play 4 of each of those four cards or dont play Emissary at all.

If you are building this to Standard, note what all rotates out next month: Hellrider, Lightning Mauler, Stromkirk Noble, Vexing Devil, Brimstone Volley, Searing Spear (will be replaced by Lightning Strike) and Pillar of Flame. Thats quite a lot.

If you wish, take a look and possibly some ideas from a post rotation mono-red deck I am making: http://www.mtgvault.com/zipec/decks/red-burn-and-smack-theros/
I would be also pleased if you shared your thoughts and comments on it.

Fine. Even if you assemble the combo you can't truly hope to protect all pieces with just 3 Dispells against Shocks and Doomblades (try Negate sideboard?) and just 3 Essence Scatters against Scavenging Oozes and Deathrite Shamans (more Rapid Hybridization sideboard?)...
Still, I appreciate the combo even fragile as it is. Its not easy to go infinite in standard.

So... You just need to assemble 1)Archeomancer, 2)Gilded Lotus, 3)Ghostly Flickers and either 4a)Talrand or 4b)Denizen...
Seems incredibly unlikely to happen, but gotta admit, its standard legal infinite combo.

Try Lilianas Reaver. You need something to win the game with and a few 1 or 2 power creatures take too long.
I would cut Hex. Almost noone plays equips. Also Bone Splinters is not very effective with few creatures and no tokens. You can replace it with Ultimate Price and Devour Flesh.

Looks playable. Hovever I would recommend running more instant control. Something like -1 Think Twice, -1 Revelation -1 Sphere +2 Syncopate +1 Dissipate

From creatures, if you wish to keep a fairly low amount, how about some guys with some sort of protection against removal. Fiendslayer Paladin comes to mind. Moreover his first strike and lifelink are gonna be awesome with Sunforgers +4 power. There are also a few paladins with color protections. From spells, I woul cut a few browbeats.

Or Rootborn Defenses in sideboard might be actually better against Ratchet Bomb.
When you see Ratchet Bomb being seted up. You just keep 3 mana open to make your guys indestructible.

Yeah, I like the second version a lot. Good work. :-)

With everything cheap like this, you really should run something like 21 lands.
There is absolutely no reason to play Rest in Peace and Rain of Blades in mainboard.
Instead of Blind Obedience, you can play Imposing Sovereign to help your aggro.
You have no removal, apart from Divine Deflection, play at least some Celestial Flare or anything. You could also play Frontline Medic so you dont die on every attack.
From standard humans, I also like Doomed Traveler, Thalia and Mentor of the Meek.

Godhead of Awe in token deck is brilliant idea. Awesome.

I really like the idea of adding Battledriver, he is better here than in any RDW deck.
Also good thing its almost standard legal, if you only replaced Lightning Bolt with Searing Spear and Mana Leak with Negate/Essence Scatter.

So, you want to pull Mortal Combat win with 26 creatures? Meaning you have to go through 80% of your deck?... You need both Skullclamp and Altar to be able to run steadily through your deck. Still, you have so many guys Skullclamp doesnt kill. It can work sometimes, but you desperately need either Skullclamp or Ad Nauseam with mana instants in an opening hand. Still, Ad Nauseam will hurt very much, maybe you can try Blood Artist instead of Disciple.
Also I would suggest 2 more Kobolds instead of Immortal Servitude.
And one last question, how are you gonna protect yourself from Tormods Crypt and similar grave-hate?

Warleaders Helix is nice suggestion. I removed the "metalcraft instants" and focused on some steadily performings. Also the Boros Charm you use seems like a good choice. I used Hold the Line but decided against it as VincentX18 recommended as it was too reactive.
Phoenix is good but I am not making this into burn deck.

You have way to few creatures. 11/60 means you got one in your opeing hand and one every sixth draw. Thats underwhelming since you need creatures to run your sunforger and they have no protectio against removal.
Also this statement is invalid "I'll Sunforge for Flamebreak" you cant Sunforger sorceries. Nor flamebreak,nor Browbeat does their thing in this deck.

Think about how much value you will get from one of those 5 mana (!!!) enchantments in an ordinary game. Usually very little, because you have only 6 artifacts and 3 sorceries that can benefit from it (I hope I am not missing anything). I recommend running more of those artifacts/sorceries instead, pick the ones you like the best to replace 2 slots left after Doubling Season.
For example imagine you have two Doors to Nothingness or one Door and one Doubling Season. The effect is the same, but with two Doors you save 1 mana and are more resistent to removal (you still get half value if opponent destroys one of your Doors).
Plus the price of Doubling Season is over the roof (does not apply if you already have some).

Shame that the two best snakes are UG: Coiling Oracle and Mystic Snake. But they are quite different from what you are trying to achieve.
I think Doubling Season is not that great here.

Interactive and fun deck which actually might work. Perfect for casual play. First time I see Lightning Storm and I already like it. Just add some duals, at least Rakdos Guildgate or Evolving Wilds/Terramorphic Expanse and it will be perfect.

Well it depends on your experiences with the cards you play. E.g. I tried Rakdos's Return, but I found it too slow for my deck. It might be good sideboard against control, but usually by the time I had 5 lands, my opponents had almost empty hand. And instead of casting it for 1 or 2 I would rather have a Duress. Toil/Trouble is interesting but I think its too situational and if cast only for draw, it loses your tempo. Warleader's Helix is nice, but the 4 mana can be a problem sometimes.
Thunderous Wrath is awesome in 1 or 2 copies. You will rarely draw it in opening hand and its miracle is really powerfull. Searing Spear is cheap and reliable removal and burn so I think its worth running a whole playset. I have good experiences with Ash Zealots, but honestly I dont know what to remove to make room for them. :-)
I would try something like this:
-2 Rakdos's Return
-2 Toil/Trouble
-1 Warleader's Helix
+4 Searing Spear
+1 Thunderous Wrath
You get more removals and more instant speed spells, so you can keep mana open for the skullcrack if they play some nasty lifegain. Also your mana curve will be lover which should help you burn opponent faster if you can't control and need to race in hexproof and similar matchups.

I think the new Chandra might be the card to look at. She offers excelent card advantage.
I would also suggest Thundermaw Hellkite, its awesome for more controlish reds, but 22 lands might be too few for it.
I am surprised you dont run Searing Spear, its ability to hit creature makes it better than Skullcrack in many matchups. I also advise Thunderbolt as sideboard against Olivia/NIghthawk.
You can take a look at my standard control/burn which got me to second place at todays FNM: http://www.mtgvault.com/zipec/decks/br-burn-revisited-isd-rtr/

Well, yes, same as the "mill", also something that spins. Your turns are like "draw (something like 4 cards) and go" so there is plenty of free time while playing this deck that you can spend however you like - e.g. spinning.
Regarding the price: Half of it are lands, which I have so there is no issue, the deck wont perform much worse with cheap lands like Sejiri Refuge, Azorius Guildgate e.t.c. The other half of price is Leyline and Jace.