Would Ulyanovsk have retained heavy missiles?

Did Ulyanovsk give up the heavy missile armament of earlier Soviet carriers?

No. The planned armament still included twelve P-700 Granit missiles and air-defence systems.

Ulyanovsk was still intended to carry twelve P-700 Granit surface-to-surface missiles. Surface-to-air missiles and other defensive systems also remained in the design. Enlarging the carrier air capability therefore did not mean abandoning substantial missile armament.