I stated why I think it wouldn't be a good choice from a game balancing stand point considering the 12.7mm pistol is very similar and it would be redundant to have it along side it.
First, you are basing your thoughts of similarities entirely on the cartridge. There are no similarities between the 12.7MM pistol and a Desert Eagle beyond the cartridge it would fire if it were put in the game as a .50. However there are similarities between the 9MM pistol and 1911 and unless they introduce .45 ACP you should be repeating yourself from this thread against the 1911, but your not which means you are not applying your opinion consistently which invalidates it all together.
Not that it really had anything behind it considering the .357 Magnum has three revolvers that use the round.
As for the comments about the real world 'pracicality' of the Desert Eagle, let's discuss. I've done a lot of research and general consensus is that it was created as an exercise. Which is likely considering it uses a gas system which is actually more similar to any rifle than a normal handgun. Silhouette shooting and hunting were the only other possible avenues it could be taken seriously(Which some do actually. There are plenty of people who hunt with it) The main reason it is as popular as it is today? There is now a huge market for it. Is it because it is the most efficient hunting tool? Most likely not. Is it because hollywood has immortalized it and it is fun to shoot? Yes. I'm used to shotguns since I own two and can't purchase a handgun until December but have shot a few quite a bit owned by friends. I got to shoot a DE once and it was great, unlike anything I had ever shot. It was FUN. I don't dislike the Desert Eagle, I like it for what it is, if I had more money I would get one.
Hollywood made the S&W Model 29 famous with the Dirty Harry movies, there is really nothing wrong with Hollywood immortalizing a weapon if it's got something to actually back it up and in the Desert Eagle's and S&W M29's case, they do. Most firearm enthusiasts tend to dislike guns hollywood puts in their movies, to the point where they'll over exaggerate flaws or outright lie about guns.
On the flip side, you have 4 pound piece of metal that is known to for it's unreliability and very slow to handle.
Actually, the unreliability of the DE is quite over exaggerated. While it's not like an AK47 or 1911, if proper ammo is used, the gun kept clean it should function properly with very few hickups. Jams are usually caused by poor ammo, limp wristing, and bad maintenance.
4 pounds ain't that heavy, I have handled a Desert Eagle and like the weight of the weapon myself. And the weight proves useful when firing such a large cartridge, would you think it would be any better to fire a .50AE round out of a pistol that weighed as much as a compact glock? I highly doubt you would...
Shot Placement > Caliber. If the Desert Eagle was practical you would see people do well with it in competition shooting and not the 1911 which is the dominant competition shooter. There is no point carrying something as unwieldly as the DE just because it fires a big round. If you need something that strong, then a pistol isn't the format you want to use that firepower, that is where a rifle comes in. It is highly likely that if you did shoot someone with a DE they would have likely been stopped if you shot them with a .45. And yes it would stop a bear better than a P220, but the P220 was designed for combat, not hunting. The DE was designed for the design and can also be used in hunting. I guess the SEALS should adopt the DE then and ditch the Sigs?
If you were going to compete with a Desert Eagle you'd have to put it in a class with magnum caliber revolvers, it only makes sense. It fires a round that makes the 1911's .45 ACP look like a BB gun, and with that power comes heavy recoil. A .357 Magnum Desert Eagle would be better for competition shooting against guns like the 1911 considering the .357 in the DE has little recoil. I've heard of people doing well with the .357 Desert Eagle in competition shooting actually.
Rifles (with the exception of automatics) aren't exactly choice material for corridor shooting, and a Desert Eagle would be easier to maneuver than a full shotgun.
As for it's practicality in game, we already have the hunting revolver and the 12.7mm Pistol as the automatic counterpart.
9mm, Maria, 10MM, weathered 10MM... We don't need the 1911 :dance:
I'm not trying to be rude, if I came off that way I'm sorry, I'm just pointing out the other side of the coin.
The other side of the coin is primarily nit picking when thoroughly evaluated.