I agree with OldRebel.
With Smtts, players who lost most attacks now get 1 star, those who got 1 star are getting 2 stars, and those who got 2 stars are getting 3 stars. Nobody continues in a game where you lose more than you win because the defense outweighs the attacks.
But Smtts is no guarantee of victory all the time. Just like attacking with 24 jets/jumps, neither is it, unless you use intelligence and other units, and also hero, dekas, Air and squad center because there are bases that are a nightmare for any attacker.
Smtts affect war attacks much more than PvP, obviously because in PvP the rival has multiple chances to defend.
In our last war, my mini Imperial HQ 8 passed over a Prestige (not maxed out but full prestige with level 8-9 turrets and most prestige buildings, more dekas, rancor, idt, and some atst in SC) with a bunch of Level 5 SMTTs and ITTs, plus a Lugga sample from HQ, eATTE, repair, storms for the buildings in the corners, air and sc.
Since we had Kit and Hoth, and the rival had Dando, it was like a "No-OP" war attack for me. I had never attacked such a strong Prestige base before with my mini HQ 8 without Tako or Tatooine to help to get 3 uplinks. That Prestige guy probably thought I was cheating. lol
SMTTs are OP, yes they are, and they need to be kept out of the No-OP wars, yes they do, but since we don't play No-OP wars, I don't mind. SMTTs are what guarantee that my boys with a lower HQ can destroy bases higher than theirs in wars, and I think that's very good. Better than just capturing and recapturing OPs.
SWC Windows survivor.
Imperial HQ 11 & Rebel HQ 11 on vacation.