All four sentences display correct subject-verb agreement. The subject "team" is a collective noun, and it can take either singular or plural verb forms depending on whether it is considered as a single entity or a group of individuals. However, the first two sentences ("travels" and "was") and the last sentence ("fell") use the singular form, which is appropriate when referring to the team as a whole.
If the context emphasizes the individual members of the team, the third sentence ("wears their uniform") can also be correct, especially in American English, where it is common to use "their" for singular collective nouns.
So, all sentences are correct, but if you're looking for typical usage where the team is treated as a single entity, the first two ("travels" and "was") are the clearest examples of subject-verb agreement.