A bit of reality...
Maneuvers increases time to target and consume fuel, which negatively affects range.
Question: At which stage of flight does the missile begins its maneuver?
The question is very important as there are two main crucial factors affecting the targeting system. Line-of-sight (LoS) rate change between missile and target and sensor capability.
If the missile performs its maneuvers AFTER it has chosen a target, does its maneuvers take it outside of its sensor physical scan limits? If it does, what is the reacquisition method and how will this method compensate for the chance that during the return maneuver, the sensor encounter additional targets that may or may not have the same return signal strength? This is regardless of sensor type: radar or infrared or hybrid.
On the other hand, if after the missile chose a target, begins its maneuvers and those maneuvers DOES NOT take it beyond its sensor physical scan limits, meaning that during these maneuvers the missile maintains continuous track of the chosen target, then its maneuvers will be severely limited in all axis and in rate change., thereby increasing its vulnerability to countermeasures.