+1 its pretty annyoing would love to see a fix

The correction comes from the aiming unit, because the guidance is not over a laser. Everything seems like the titan is wireguided and then you need the correction because the rocket is not coming straight to the target (when you shoot you have a knockback).The correction is needed because of the inertia that the rocket has when flying into the aimed path.

Later I can try to make a video how possible and easy it is to use a titan AP/AT.BTW you dont shoot the titan on lower than 200m because of the raise at the beginning, there is a too high chance to miss

Previously, everything was fine. The problem came with the last update in April or May.
I do not remember what was the version where the problem is absent. It came with the inertia from the launcher titata. The rocket fell into the crosshairs always keep. Even at a very short distance to the target.
All pictures clearance of more than 500-600 meters, several of about 1000 meters. At a distance of 2000-2500 meters the rocket is always close to the crosshairs.

http://youtu.be/LjB3ItAOdxU

Thanks for video. I too so shoot, already automatically the hand works for this "delta" in a sight. In game there is less than opportunity on a mistake. One your miss can cost losses of advantage in an operational situation. Or there will be no following chance of the second attempt. The titan belongs to the class of the clever weapon, and is offensive when opportunities are lost to PCML or RPG-42 launchers. At PCML and RPG-42 in this plan advantage is had - there is a sight with reference points on range.
Many players ceased to use the titan, considering that you should not learn to shoot so.

the video is some kind of cs:go ak47 spread controle stuff but the rocket launcher should be intelligent enough to fire straight forward just take a look https://www.youtube.com/watch?v=aX-99a1JCc4 the weapon shoots offset to the right the sight abjusts that for you automaticly now think about the techlologie in the big and more expensive rocket launcher so lex is right and the rockets whould lock because the rockets fit and uses the same targeting tech as the HE one

Its technically not possible to fire straight because the CLU is in an angle to the tube. The other thing is that the titan is supposed to be a Top attack rocket.

The rocket is obliged to fly to a point of light of the laser. The corner of start of the rocket has to influence obtaining inertia in a shoulder at start-up. This corner gives you steady situation and will reduce fluctuations of a sight to a minimum. It gives you the chance steadily to hold a laser point on the purpose. In game it does not work. Clever anti-tank and antipersonnel means is used on a half of the opportunities. Developers of real prototypes took care of it, we get used to that as it is realized in game and we wait from BI to hear our opinions.
Here I wrote about other characteristics of prototypes. They too are not realized in game yet. http://feedback.arma3.com/view.php?id=23877
In the Titan there are three main problems.
The first - guidance of the rocket on the laser. In the official report here.
The second - inertia of start-up. In this official report http://feedback.arma3.com/view.php?id=24774
The third - lack of two modes of missile launch on capture on the purpose.
In this official report http://feedback.arma3.com/view.php?id=23877
It concerns two trajectories of flight to the purpose. One trajectory of low flight. The second trajectory highly lifts the rocket and falls by the purpose with top.

In standard wireguided missles dont have a laser guidance because of aiming problems when there are bushes etc and because you see the laserpoint with special optics. Wireguided work in a system where the rocket is tracked as a dot and the CLU gives commands to fly to the crosshair, no matter wehere it is in space. But you cannot simulate everything perfectly. And the correction that you have to do is in the current state of the titan launcher and the fly path of the rocket physically right. Where i would agree is rocket launchers today are recoilless it would make the correction much easier when you had less recoil. Maybe BI makes the start of the titan just the way a javelin starts (no matter top attack or not).

I play on a server where the disabled option "fatigue." I have the impression, as is the launch of missiles from Titan on servers that included the "fatigue". BI, please decide this question. Or return it to the state in version 1.40 Arma3.

Its weaponsway not fatigue.