Will tazorac cream (tazarotene cream) help with acne scars?

No. They won't touch the scars. Many men -- including several noted hollywood "tough guys" -- like the scars for the character they give. Others hate them, or are indifferent, or let their partner decide. You have a choice. Laser therapy and fillers are used by dermatologists with much success.
No. Tazorac (tazarotene) can improve skin texture and skin discoloration but it will not likely improve acne scars.

Related Questions

Will tazorac (tazarotene) cream help me with acne scars?

Probably not. It is an exfoliant but not enough to erase scars. It is more for active acne and its control.
Not likely. Tazorac (tazarotene) is a synthetic form of vitamin a. It will likely not improve acne scars but can improve overall texture and skin coloration.

Does tazorac (tazarotene) help with acne scars?

See below. Tazorac (tazarotene) does not treat acne scarring. It is a topical retinoid similar to, but more potent that retin-a. It can help prevent new acne scars by preventing serious breakouts as part of an acne treatment regimen. Some patients (especially those with darker skin tones) can develop dark spots from acne. These are not actually scars and Retin-A can help improve them over the course of many months.
Probably not. Acne scars are not likely to be treated with tazorac (tazarotene). Tazorac (tazarotene) can improve skin texture however and skin discolorations.

What skin treatments are good for acne marks and I have one slightly slightly depressed acne scar? Any creams? Peels? I'm on retin-a for a 5 weeks

Various. Peels can work over time. Fractional co2 ablation can do wonders to get rid of this scars. Microdermabrasion can help in less severe cases. Very severe cases require surgery oftentimes.
Laser/excision. If an acne scar is depressed, consideration of local excision or a resurfacing laser treatment might be helpful. Typically, if the scar is deep, peels and creams cannot effectively eradicate the issue.
Numerous choices. There are a variety of treatments that vary according to the severity of scars: chemical peels, dermabrasion, laser resurfacing, fillers, fat grafting, excision, grafting, etc.

Has anyone ever used "tazorac" cream for acne, and not had side effects?

The only.... ..Significant side effect from tazorac, (tazarotene) in my experience, is dryness and irritation. Wait an hour after washing your face, to allow normal skin oils to replenish, before applying it. And apply it at bedtime, so that any irritation will occur while you're asleep.

How long does it take retin-a micro to clear acne scars?

See below. Retin-a mirco does not treat acne scarring. It can help prevent new acne scars by preventing serious breakout as part of an acne treatment regimen. Some patients (especially those with darker skin tones) can develop dark spots from acne lesions. These are not actually scars and Retin-A can help improve them over the course of many months.
Not for scars. Retin-a is good for texture of skin changes and skin discoloration however it does not treat acne scars.

How do you fix a slightly depressed red acne scar? Its been on my cheek for 7 months! : (I've been on retin-a micro for 9 weeks as well

Depressed acne scars. If there is one or a few depressed acne scars, there are a number of ways to help improve its appearance, such as injection of a filler underneath the scar, subscision (loosening the scar tissue beneath the surface), punch excision. If there are more than a few, there are laser treatments that can help.
Acne scar. This is still fairly early in the eating process. Continue gentle massage with non-comedogenic moisturizer and sunscreen.

Does retin-a micro help treat a slightly depressed red acne scar? I've been on it for 10 weeks but no improvement in skin tone except for breakouts.

No. As you have experienced, retin a (tretinoin) van provide many benefits. Unfortunately scar eradication is not one of those benefits. Laser treatments or excision and grafting (depending upon the issue) might be helpful.
Not expected. You are experiencing the expected benefits of Retin-A and doxycycline. Scarring/hyperpigmentation may or may not improve. But if it does, it will take years to occur. Preventing acne with Retin-A means there will be less lesions to heal over time. Keep your treatment regimen going.