So why can Rufus and the Turks fight Cloud and the others on equal terms? Cloud is a super soldier and his friends are similar things. The Turks just have really nice suits, and Rufus' only superpower is the ability to survive pointblank explosions in his office.
The Turks are best of the best and use a lot of cool gadgets to get things done. A lot of them use Mako for weapons. There's a reason they exist while SOLDIER does, as well.
Because it's their job.
They can't. In the game, the Turks are never implied to be able to match Cloud. There's nothing showing that he ever breaks a sweat against them.
In Advent Children, Cloud and the others can jump crazy high, enough to easily leap small buildings. Reno needs to climb up the building since he can't jump nearly as high.
Seems to me he still performs every order without flinching and more or less actually completes every objective they were set out to do. Only time he and the Turks get jobbed in the whole movie were when they were against the main villains, who, when all together, run a train on Cloud and company.
Turks are highly capable operatives, i don't think they are that far behind soldiers in terms of power. Plus they are using gadgets and other shit to win while Cloud only relies on sword and magic.
Plus in the beginning they are fighting a poor, mindbroken version of Cloud who doesn't most likely even realizes his full potential. Highly doubt Turks would be able to do shit against omnislash.
I think a lot of that has to do with the differences between the original english and jap dialogue. In the jap version he comes across as generally lazy and unprofessional because of how he speaks, though he's still ruthless and gets the job done when it's needed.
In the english version, from what I remember they played him pretty straight for the most part in his dialogue, professional and ruthless, but then you still get a few joke scenes where deadpan murderer is on vacation and doesn't bother going after Cloud and company, even though it's pretty much priority number one at this point. His laziness comes across as a bit more "subtle" in the english version I guess.
I suppose you could see it as him kind of mellowing out a bit in AC and taking things less seriously, Shinra's really not much of a thing anymore. This is fine if you're talking about the Jap Reno, but pretty jarring for English Reno.