Name the mainline game with co-op before RE5  

Also note I said RE5 streamlined their inventory 

Old RE inventory some things take up more space than others

RE4 Iventory where things took up more space than in the old games so having more space isn't as big of a deal when guns take up over half of it.

RE5 where any gun takes up the the exact same amount of space and then at the end of the level you get as much space as you need to store your stuff

Sounds to me you just defeated your own argument, thanks for that.

Lolz man you just keep digging this hole deeper I'm honestly starting to believe you don't even play RE and that's coming from me, a guy that sucks pretty hard at 1-4 (compared to my fanatic friends, though RE5 was really easy cause it was simply an action game unlike the rest of the series).

Taken a couple of minutes ago with my webcam, clearly states 1 player, you control two characters in a singleplayer game, that's not co-op.

I think opinions vary too much on what an expansion type game is, considering how much SMG2 was called that. Also, I'm not very keen on DLC, it often feels like it should have been included in the price in the first place.

Sometimes, there is disk issues involved.  Also, developers will face deadlines.  The game may not also end up selling well enough, not justifying the adiditonal content.  And then a game could go into different directions from the original which means that there is room for it.  Or, a major reason is dev costs, and they can get away with selling more content.  A big reason now is that, people are willing to pay for it, so you get it.  Fans can also call for more stuff and the expansion content is a way to provide it.

The exit door is that little X in the corner of your window.

I think Kyliedog is just a Rol that keeps up the character Rol creates for one single thread, Kylie just never turns that character off.

Even though I believe this... for shits and giggles

co·op·er·a·tive   (k-pr--tv, --rtv, -pr-)

Cooperative games require cooperation with others, IE another physical being, in a means to get a similar ends which is beating a stage in a video game.  In no way is playing a singleplayer game cooperative, it defies the very definition of the word and what it means to be a co-op game.

You're doing this to get a reaction out of people which is why you ignore facts, admit it.

Agree. Dumbing down is the worst for my tastes, but I guess deviation can damage a franchise even more (not always, Fallout 3 for example is successful, despite quite deviated, but it was released so many years after the previous episodes that more than deviating, it rebuilt an old and missedd franchise in another direction).

I agree also with your last point, I noticed too that often these sequel design flaws come combined, to further worsen things, and this is particularly true for dumbing down often combined with deviation (a typical example, former core RPG franchises that get dumbed down also by wildly stripping them of RPG elements).

Easily dumbing down. There are dozens and dozens of franchises which have turned to utter crap because of it.

You say tomato,

Kylie says patato,

I say divide by Zero... and we get undefined and call the whole thing off!