Warlusts are a bit weird. I have a Pandemonium going against the simulator Onslaught. Panda gets into PD range (which is quite respectable with ITU + Dampened Mounts) and opens up. Warlusts, even though they have that nominal max support range of 2500, simply hover around the middle of the dreadnought, not doing anything unless I get even closer, when their sniper blasters can reach the enemy without them having to move forward one bit.
Maybe that's just how the support fighter AI is in general, and I suppose Warlusts work well as point-defense platforms, but if that's their intended role, I'd argue the sniper classification is a bit misleading. A "sniper blaster" in a fighter makes me think of close support/assault role, instead of strict fighter/frigate defense.
Edit: Uh, I take it Strifes and Warlusts having base replacement time of 0 seconds and Frosts 1 second is not intended.
Edit 2: Scratch that, I think the Wanzer Servicing Gantry is affecting things weirdly. After starting the game, everything seems to be fine, replacement times are what they should be. I start a simulator fight, things work normally, I end the fight, back to the refit screen. Now the replacement times are screwed up, 5 seconds for Strifes for example. Going back to campaign map or loading a save doesn't fix it, and in combat the replacement times are as absurdly fast as the stats claim. Game needs to be restarted to bring the fighter stats back to normal.
Edit 3: So looks like running a simulator fight, waiting for the wanzers to deploy, and then quitting back to the refit screen reduces their replacement time. Subsequent fights reduce the time further, until it is zero. This persists for all wanzer wings of the used types, even if they're installed on carriers without the Wanzer Servicing Gantry.