You know a similar argument
can be is made for the MkIV.
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True. The difference is that the Viper MK IV indeed has some advantages. There are videos around, where the Viper MK IV is made tough as nails. It can be turned into an extremely sturdy small ship, faster and more agile than any medium, but its toughness rivaling that of some medium ships. It's a small niche, but it exists. The Viper MK IV is being used for the given reasons by players who can afford and own much more expensive ships.
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The same just can't be said for the Cobra MK IV. It also tries to be a "small medium". But it only is a small ship in terms of shields, hull, weapons, utility slots and landing pad size. It has all the disadvantages of a small ship and the only advantage would be landing pad size. Which doesn't really matter in the present game. What it lacks are the other advantages small ships tend to have: speed and agility.
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Many people point at the internals, which are "most you can get on a small ship". This is true. But for a marginally higher price, you can get the Type 6. Which offers a similar number of internals, but bigger ones. Along with more jump range, one more utility slot, higher speed, higher boost speed and better handling.
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So the T6 wins for trading, exploration and mining. The only thing the Cobra MK IV has over the T6 is that it's "better" in combat by having more hardpoints and a bit more shields, while the T6 has much more hull. But rating either of those two ships for combat is like a fight between a toddler and a paraplegic. I'd rather have the T6, as it's better in escaping. In terms of combat the Viper family, the Cobra MK III, the Eagle family and arguably even the Adder do better and come at a lower price than the Cobra MK IV. And that's without looking at the Courier or Vulture, as one of them is faction locked and the other one costs much more.
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So really, unless about 200k credits make all the difference for you, there's no point for the Cobra MK IV. And that's why I don't consider this ships niche to exist. Even if a new player would have access to this ship, it's only a small timeframe where this ship would be of advantage. The same time is better spent doing one more mission or trade run and buying a ship which then is useful for a bit longer.
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