[Guidance bug] Mi28 Ataka missile ineffective against approaching targets Thread - WIC: Modern Warfare Mod for World in Conflict

It's quite hard to hit targets that's moving towards you at 12 clock, in comparison to 3/6/9, i assume missile guidance doesn't take ground into account when predicting target position?

Lol yep definitely, there is an issue with 12 o'clock position affecting all SACLOS missiles, including Mi-28 and vehicle fired missiles as well (Kornet, Konkurs, TOW, etc). Your assumption is 100% correct. We'll look at fixing this in future release, by adding ground compensation for ATGMs.

Because SACLOS relies on the LOS between the launcher and the target, with missile sitting in between (3-point guidance), it is highly sensitive to any oscillation of LOS beam from the launcher's point of view against the target (unlike proportional navigation (PN) guidance, which uses LOS between the missile itself and the target, so PN has the benefit of operating in a true pursuer-vs-runner scenario).

This is akin to firing TOW missile in BF3/BF4 multiplayer, where TOW follows your mouse pointer -- if you want to lead against moving target, you over-steer your mouse pointer well ahead of the target, and then move your mouse back on the target when missile plume appears to get closer. FLINT CLOS guidance in WiC MW follows the exact same principle as human player guiding a TOW in BF3 -- except computer is zerg-rushing the mouse pointer for you, proportional to the cross-range error and beam motion rate.

With CLOS guidance, when target is moving, the LOS between launcher and the target oscillates (beam motion). The guidance system overcompensates this oscillation by steering the missile by a factor of X times the beam motion. When the target is moving along 3/9 o'clock, LOS oscillates laterally - guidance over-steers the missile to lead against oscillation, but eventually the missile will steer back on the beam toward the end, resulting in intercept. Since there is no obstacle along 3/9 line, missile can freely over-steer and maneuver back itself on the target.

When the target is coming towards you at 12 o'clock, LOS oscillates along the Y-axis (vertically) - this causes guidance system to over-steer the missile along Y-axis without considering the ground, resulting in controlled flight into terrain. On the other hand, if the target is driving away from you, LOS oscillates upwards along the Y-axis -- in this case, missile will hit the target successfully as there is no ground obstacle (provided it has energy to cover the increased distance).

Edited by: blahdy