Skyfight rules punish acquisition of targets at ranges over 50% of radar range to unreasonable degree. Calculation of acquisition modifiers in long ranges is also very difficult.
Radar Lock-On rules have been retained as they are with situation factors associated to radar's range rewritten as whole into following:
+1 if range to target is between 51 to 75% of Radar's Range (R/R).
+2 if range to target is over 76% of Radar's Range (R/R).
Note: Target may divide its ECM points to jam multiple enemy radars