DBC 3:92:2 in suis ordinibus dispositi dispersos adorirentur

[cinefactus]

sed Pompēius suīs praedīxerat, ut Caesaris impetum exciperent nēve sē locō movērent aciemque eius distrahī paterentur; idque admonitū C. Triārī fēcisse dīcēbātur, ut prīmus excursus vīsque mīlitum īnfringerētur aciēsque distenderētur, atque in suīs ōrdinibus dispositī dīspersōs adorīrentur;

I figure literally it is:
and they would attack his ranks being placed scattered about

but why not just
atque in suīs ōrdinibus dīspersī adorīrentur

 

[Pacifica]

It is "they, placed in their ranks, would attack the scattered [enemy]".

That is, Pompey's soldiers would hold their ranks, remain orderly, and attack the disorderedly scattered enemy. Thus, Pompey's soldiers would be at an advantage.

 

[cinefactus]

Ah, I got it the wrong way around. Thanks