Why i think call of duty is shit.

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Actually, it's not, the IW engine which has been used since Cod2 was made in 1999, so rounding to the nearest five is 15 years. So, yeah, it isn't. Just because it wasn't used until 2005 doesn't mean it wasn't around before then.
And the fact is, look at the screenshot from Cod MW1, and MW3/2. Look at the buildings etc, they look the exact same as they did in MW1, they just updated the models. So the point is, the engine is vastly under developed, and HPL is nowhere near as old, and Source, is constantly developed by Valve to become better, (ahem, Half Life 2 - Portal 2) as with the unreal engine. Activision only really update models - I can get comparison pictures if you want.

You're referring to the ID tech engine which is the engine that IWE spawned from. It's not the same engine. At it's core yes, but so are many other engines out there. The difference between the two engines are too vast to make a direct comparison. It's kinda like comparing GSRC with Source (which is a spawn from the GSRC engine, which in turn spawned from the Quake engine), at it's core it's the same engine, but the make-over that the engine has gone over has made it into the independent engine that it is today.

I'm not, I'm referring to the IW engine which was created in 1999, not the ID tech engine, if I was referring to the ID tech engine I'd say that engine instead of the IW engine.

Then you got your facts wrong. Because the engine that CoD 1 was made with is a modification of the ID tech 3 engine. Then IW revamped and almost rewrote the engine later to be used in 2005 for CoD2 (now known as IWE). It's a different engine, though with the same core as the ID tech engine.

I never talked about the first call of duty though did I? So how did I get my facts wrong when I was talking about the engine Cod2 used? It was made first in 1999, then used for Cod2 in 2005, what they'd of done is just revamp etc it between then and 2005, but how on earth was I talking about the first call of duty?

By your definition Amnesia is running on a 6 year old engine, because the HPL2 engine is just the same as the HPL1 build used in the Penumbra Tech Demo, right?

Also, what they did was not just "revamp it", they heavily modified an already heavily modified version of the id Tech 3 engine. It doesn't matter how old it is, they are constantly improving upon it and in theory a well designed engine can be used forever.