Excluding Sisters for the simply fact that they really need a 5th ed Dark Eldar style re-boot from the ground up, Chaos is easily the most lackluster & craptastic model line currently...
Honestly, Chaos ideally
should have 3 wave releases next year to bring them up in line with pretty much everyone else bar sisters. Currently they only have 3 'solid' plastic kist outside of their vehicles - the Termie Lord, Possessed & Raptors/Warp Talons combi-kit. All the other kits are either ancient, finecrap and/or missing upgrade options...
Chaos Space Marine kit:
- power axe, power maul, combi-flamer, combi-meltagun, combi-plasma gun, combi-bolter, missile launcher, autocannon, lascannon all missing entirely.
- only 8x sets of Bolter or pistol/
ccw, meaning you *must* build specialist models out of the 10 man kit.
Termies:
- combi-plasma, power sword, power lance, lightning claws all missing from the kit.
- only 1 each of combi-flamer, combi-melta, power maul, chainfist.
- only 2 each of power axe, power fist.
It's utterly impossible to make a viable squad with this stupid kit! I mean for

sake, if you wanted say a 3 man 'Termicide' unit of 3x combi-meltaguns, you need to buy 3 bloody kits!
Chaos Termies should be redone and given a kit similar at least in bitz to what the
SW or
DA kits have, though ideally, more akin to the
GK Termie kit.
Berserkers:
- only 6 Chainaxes per box. Other 6 dudes are left with the chainsword, meaning that again, you can't even upgrade the squad properly with it's most basic options.
- No champion upgrades at all beyond a Plasma pistol. Not even a freaking Power toy!
Then you have the likes of the Cult Troops which are all either upgrade or 100% Finecrap kits, Havocs who only come with 1 of each weapon meaning that yet again, you can't build any kind of viable squad out of the box...
Really,
GW could easily 'fix' the poor
CSM lines quite easily within a 12 month period;
Wave 1;
- new Chaos Marine kit, including 1x each special weapon + 1x Missile launcher + 1x Heavy Flamer + 1x combi-weapon ala
Tac Marine kit + 1x Power sword + 1x Power axe + 1x Power fist. Also include 16 heads, (10 helmeted, 2 'generic' bare, 4 'marked'), 4 'marked' shoulder pads.
- new Havoc kit, including 2x Lascannon + 2x Autocannon + 2x Heavy bolter +1x Missile launcher + 1 each special weapon. Champion bitz could include a Power maul + fist + combi-weapon options.
- new Noise Marine kit.
Wave 2;
- new Chosen kit with options similar to the Sternguard kit, such as 2 of each combi-weapon, a pair of heavy weapons, a couple champion weapon options.
- new Termie kit with at least 2 of each combi-weapon option, 2 or 3 pairs of lightning claws, 3-4 of both power axe/maul, 3 power fists, plus 1 of each heavy weapon option.
- new Thousand Sons kit.
Wave 3;
- new Plague Marine kit
- new Berserker kit with enough Chainaxes for each marine.
Boom.
CSM line no longer sucks giant monkey balls...