Radar guidance is not the issue I believe we have enough of that with the CV groups.
That isn't a good comparison... I feel strongly the problem with the 88 guns isn't the damage output but it is the accuracy, which is very similar to how it was historically at longer ranges.
I'm not asking for the 88 to be proximity fuzed, I'm suggesting that the gunner be given cues on where to aim and what range to set the fuzing to emulate the radar controlled guns the Germans had. Below 10k, and within 8,000 yards it would be deadly, while at the higher altitudes and ranges it would be less dangerous except to aircraft that are slow and have a predictable flight path (like bombers). This would make vulching more dangerous, and very hazardous to a bomber under 12k.
I played with the 88mm guns and fired approx 35 rounds at a horde mission at an airbase. I found I only killed 1 aircraft with the actual explosion from the shell, the other 2 I killed was by the shell impacting the plane. On the deck, low and slow with predictable flight paths (ie up and down the runway) it should of been complete carnage.
edit: I'd like the radar be able to be destroyed but would be spread around the airfield like fuel tanks are. Either way, the 88 would be available to be manned, radar available or not.