Below I've written up all tasks and rewards for the Steel Monsters Campaign. I've also done some calculations/estimations, looking at whether the campaign is worth the price tag. Now obviously 50 euros is quite an amount to "fork over" for a set of missions, so what do you get, and is it worth it?
Set 1
Tasks
1
2
3
4
5
Final
Mission
Earn 3000 free XP
Earn 15000 XP (modifiers)
Destroy 3 enemy battleships
Cause 40000 damage to destroyers
Cause 200000 damage to ships
Earn 1 million credits
Reward
5x New Year 2017
5x Type 3 New Year
5x Frosty Fir Tree
10x Sierra Mike
3x Mosaic
500 Steel,
Big Santa Box
Highest items worth:
600d for Mosaic
2,70€ for Big Santa Box
Set 2
Tasks
1
2
3
4
5
Final
Mission
receive 1 million of potential damage
Incapacitate or destroy 50 modules
Destroy 4 cruisers
Cause 250000 damage
Hit citadels 10 times
Earn 20000 XP (plus modifiers)
Reward
5x New Year 2017
5x New Year Streamer
3x Asian Lantern
10x India Delta
7 Days of premium
500 Steel,
Big Santa Box
Highest items worth:
300-600d for 3x Asian Lantern (do not own any at the time of writing)
1250d for 7 Days of Premium
2,70€ for Big Santa Box
Set 3
Tasks
1
2
3
4
5
Final
Mission
Earn 250 ribbons
Earn 30k commander XP
Earn 20 flooding or fire ribbons
Hit citadels 15 times
Cause 100000 damage to BBs
Earn 1,5 million credits
Reward
5x Type 3 New Year
10x November Foxtrot
5x New Year Streamer
7 Days of Premium
10x Victor Lima
750 Steel,
Big Santa Box
Highest items worth:
1250d for 7 Days of Premium
2,70€ for Big Santa Box
Set 4
Tasks
1
2
3
4
5
Final
Mission
Earn 300 ribbons
Earn 10 Capture or Defense ribbons
Earn 50k Commander XP
Cause 80000 damage to cruisers
Cause 300000 damage
Earn 30000 XP (plus modifiers)
Reward
5x Frosty Fir tree
5x New Year Streamer
10x India Yankee
10x Mike Yankee Soxisix
7 Days of Premium
1000 Steel,
Big Santa Box
Highest items worth:
1250d for 7 Days of Premium
2,70€ for Big Santa Box
Set 5
Tasks
1
2
3
4
5
Final
Mission
Earn 10 spotted ribbons
Destroy or incapacitate 70 modules
Earn 30 torpedo, flood and fire ribbons
Destroy 4 destroyers
Earn 15000 free XP
Play 1 battle
Reward
5x New Year Streamer
10x Juliet Charlie
7 Days of Premium
10x November Echo Setteseven
3 Spring Sky
1250 Steel,
Big Santa Box
Highest items worth:
325d for Spring Sky
1250d for 7 Days of Premium
4,50€ for Big Santa Box
Summary:
4000 steel
28 days of premium in sets of 7, equating to 5000 dubloons here. In the premium shop, you can however buy 30 days for 2500, so we'll use that instead: 9,95€
4x Big Santa boxes, 2,70€ each: 10,80€
1x Big santa box: 4,50€
2019d, closest is 2500 for another 9,95€
80x Flags of different types, 50x medium tier grind camouflage roughly 16~€ at store prices.
Lunar New Year camouflages, again, roughly: 1250-1500d~: 7,25€
Total: 58,45€ if we're generous. Several items cannot be purchased in the store however, so for these there can only be rough estimation. In addition, buying some of these items give you extra doubloons (481d), and premium time (2 days). So all in all, you are getting at least 49,99 out of this mission set.
HOWEVER, as a long time player, our main interest will not be in these smaller items, like the medium stage grind camouflage, or the non-economy flags. Indeed the interesting items are the 3x3 Lunar Camouflages, which - come on WG, 3? - and the steel. 4000 of it. Now don't get me wrong, you are getting your money's worth out of it, but worth doesn't necessarily mean it is worth it for you. Again, this would be more of a complaint if you wouldn't get all of the above PLUS the steel. I'm sure the steel alone is worth quite a bit, but that still doesn't make it feel less like a lot of the mission items are filler material.
As for the missions and task themselves, they seem pretty easy, and not too... frustrating. So is it worth it? Probably, but that depends on how you value the items above.