To be honest, the Leo2's are much faster, much much much more
manoeverable, and can engage more accurately than any "best"
russian tank.
It is unlikely that a Leo2 has to take repeated hits.
Moreover, in the Singapore scenario, the intelligence picture from
AWACS, HUMINT, GSR, etc. will have enabled us to know far
beforehand where enemies are, and our Leos are unlikely to be
caught by surprise.
even if caught by surprise, the aggressor would be rapidly
destroyed, simply by our sheer numerical and technological
advantage, plus our F-16 and Apaches ready.
It would be very very very stupid for a small russian tank equipped
force to try and beat around with our Leo2 + bionix + F-16 +
Apache....